A246587 Second trisection of A246584.

6, 48, 282, 1260, 4896, 16836, 53232, 156384, 433776, 1143696, 2890266, 7032576, 16557084, 37838052, 84206724, 182913216, 388685430, 809399280, 1654446816, 3323927340, 6572070528, 12801615744, 24590359284, 46619988384, 87302773392, 161597518272, 295849759728

Offset

0,1

Links

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

Michael D. Hirschhorn, A note on overcubic partitions, New Zealand J. Math., 42:229-234, 2012.

Bernard L. S. Lin, Arithmetic properties of overcubic partition pairs, Electronic Journal of Combinatorics 21(3) (2014), #P3.35.

Formula

a(n) ~ exp(3*Pi*sqrt(n/2)) / (2^(19/4)*sqrt(3)*n^(5/4)). - Vaclav Kotesovec, Aug 16 2019

a(n) = A246584(3*n+2). - Alois P. Heinz, Oct 27 2022

Crossrefs

Cf. A246584, A246585, A246586.

Sequence in context: A056284 A366622 A293967 * A340309 A229504 A100740

Adjacent sequences: A246584 A246585 A246586 * A246588 A246589 A246590

Keyword

nonn

Author

N. J. A. Sloane, Sep 03 2014

Status

approved