A136768 n! never ends in this many 0's in base 7.

7, 15, 23, 31, 39, 47, 55, 56, 64, 72, 80, 88, 96, 104, 112, 113, 121, 129, 137, 145, 153, 161, 169, 170, 178, 186, 194, 202, 210, 218, 226, 227, 235, 243, 251, 259, 267, 275, 283, 284, 292, 300, 308, 316, 324, 332, 340, 341, 349, 357, 365, 373, 381, 389, 397

Offset: 1

Author

Carl R. White, Jan 21 2008

Keywords

• base
• nonn

Comments

Also: n! never ends in this many 0's in base 14, 21, 28 and all other 7-divisible proper factors of 7!

Crossrefs

Cf. A000142, A136758, A136694.

Cf. A000966, A055938, A096346, A136767, A136769, A136770, A136771, A136772, A136773, A136774.