Least row in the table of binomial coefficients having a number with n distinct prime factors.
0, 2, 4, 8, 10, 16, 20, 27, 28, 34, 38, 44, 54, 57, 65, 69, 77, 86, 91, 95, 104, 115, 120, 130, 133, 141, 149, 157, 159, 171, 174, 186, 190, 204, 210, 214, 219, 238, 240, 256, 265, 272, 279, 290, 297, 302, 310, 322, 330, 341, 345, 356, 367, 369, 376, 377
0
T. D. Noe, Plot of 201 terms
T. D. Noe, Table of 201 terms
Eric W. Weisstein, MathWorld: Binomial Coefficient
(Mma) t2 = Table[Max[Table[b = Binomial[n, k]; If[b == 1, 0, Length[FactorInteger[b]]], {k, 0, n/2}]], {n, 0, 2000}]; Flatten[Table[Position[t2, n, 1, 1] - 1, {n, 0, Max[t2]}]]
Cf. A048273.
nonn
T. D. Noe, Nov 03 2014