A357249 a(n) = A139315(n)*n.

2, 6, 24, 60, 360, 840, 10080, 7560, 0, 27720, 332640, 720720, 0, 10810800, 17297280, 36756720, 1102701600, 698377680, 27935107200, 48886437600, 0, 16062686640, 385504479360, 1204701498000, 0, 20238985166400, 4497552259200, 6987268688400, 0, 216605329340400

Offset

2,1

Links

Table of n, a(n) for n=2..31.

Formula

a(n) = A129902(A139315(n)).

Example

a(8) = A139315(8)*8 = 1260*8 = 10080.

Crossrefs

Cf. A129902, A139315.

Sequence in context: A189855 A189566 A178009 * A107762 A253901 A027562

Adjacent sequences: A357246 A357247 A357248 * A357250 A357251 A357252

Keyword

nonn

Author

J. Lowell, Sep 19 2022

Extensions

More terms from Michel Marcus, Sep 20 2022

Status

approved