A086300 Arithmetic derivative of 7-smooth numbers.

0, 1, 1, 4, 1, 5, 1, 12, 6, 7, 16, 9, 8, 32, 21, 24, 10, 44, 10, 27, 32, 31, 80, 12, 60, 68, 41, 39, 112, 14, 45, 81, 92, 92, 51, 192, 59, 156, 55, 176, 108, 124, 123, 272, 77, 140, 71, 216, 240, 244, 75, 165, 448, 162, 188, 384, 91, 185, 432, 297, 332, 95, 336

Offset

1,4

Comments

a(n) = A003415(A002473(n)).

Links

Table of n, a(n) for n=1..63.

Crossrefs

Sequence in context: A328099 A003415 A302055 * A028271 A168066 A029666

Adjacent sequences: A086297 A086298 A086299 * A086301 A086302 A086303

Keyword

nonn

Author

Reinhard Zumkeller, Jul 15 2003

Status

approved