A285060 Denominators of the exponential expansion of (4/(3*log(1+x)))*(1 - 1/(1+x)^(3/4)).

1, 8, 16, 256, 1280, 2048, 28672, 131072, 327680, 524288, 11534336, 16777216, 7633633280, 4697620480, 1342177280, 17179869184, 365072220160, 171798691840, 45698452029440, 7696581394432

Offset

0,2

Comments

For the numerators see A285059, also for the rationals A285059(n)/a(n).

The z-sequence for the Sheffer triangle S2[4,3] = A225467 is 3*A285059(n)/a(n).

Links

Table of n, a(n) for n=0..19.

Formula

E.g.f.: (4/(3*log(1+x)))*(1 - 1/(1+x)^(3/4)) for the rational sequence A285059(n)/a(n), n >= 0.

Example

See A285059.

Crossrefs

Cf. A285059, A225467.

Sequence in context: A132377 A276978 A265094 * A371009 A369646 A061747

Adjacent sequences: A285057 A285058 A285059 * A285061 A285062 A285063

Keyword

nonn,frac,easy

Author

Wolfdieter Lang, Apr 13 2017

Status

approved