A277243 Number of factorizations of m^n into exactly seven factors, where m is a product of two distinct primes.

1, 2, 9, 31, 108, 325, 938, 2457, 6128, 14358, 32123, 68488, 140478, 277278, 529624, 980476, 1765492, 3097071, 5306548, 8893500, 14607217, 23542097, 37285849, 58094004, 89148980, 134862913, 201312513, 296746270, 432288197, 622756805, 887772827, 1253040268

Offset

0,2

Links

Table of n, a(n) for n=0..31.

Crossrefs

Column k=7 of A277239.

Sequence in context: A211924 A295134 A277242 * A277244 A277245 A277246

Adjacent sequences: A277240 A277241 A277242 * A277244 A277245 A277246

Keyword

nonn

Author

Alois P. Heinz, Oct 06 2016

Status

approved