A164877 First bisection of A164869.

0, 12, 120, 252, 240, 660, 32760, 84, 8160, 14364, 6600, 3036, 65520, 156, 24360, 429660, 16320, 204, 69090840, 228, 541200, 75852, 30360, 12972, 2227680, 3300, 82680, 43092, 48720, 20532, 3407203800, 372, 32640, 4271652, 2040, 328020, 10087262640

Offset

0,2

Comments

All entries are multiples of 12.

a(n) = A006953(n) * A111008(n), n>0.

Links

Table of n, a(n) for n=0..36.

Formula

a(n) = A164869(2n).

a(n) = A002445(n) * A005843(n).

Crossrefs

Sequence in context: A076633 A110423 A006953 * A121032 A188251 A093334

Adjacent sequences: A164874 A164875 A164876 * A164878 A164879 A164880

Keyword

nonn

Author

Paul Curtz, Aug 29 2009

Extensions

Edited and extended by R. J. Mathar, Sep 03 2009

Status

approved