A165823 Interleaved terms of A002445 and 2*A141421.

1, 2, 6, 24, 30, 1440, 42, 120960, 30, 7257600, 66, 958003200, 2730, 5230697472000, 6, 62768369664000, 510, 64023737057280000, 798, 102181884343418880000, 330, 67440043666656460800000, 138, 18613452051997183180800000, 2730, 101629448203904620167168000000, 6

Offset

0,2

Comments

Original name: Large denominators of Bernoulli numbers. Mix A002445, 2*A141421.

Links

Table of n, a(n) for n=0..26.

Crossrefs

Cf. A002445, A141421.

Sequence in context: A066332 A069141 A158977 * A263690 A137326 A163912

Adjacent sequences: A165820 A165821 A165822 * A165824 A165825 A165826

Keyword

nonn,less

Author

Paul Curtz, Sep 28 2009

Extensions

Edited and more terms from Sean A. Irvine, Apr 16 2026

Status

approved