A126352 Denominator of z-sequence for the Sheffer (Appell type) triangle A134832 (circular succession numbers).

1, 1, 3, 4, 5, 3, 7, 8, 9, 1, 11, 12, 13, 7, 15, 16, 17, 9, 19, 4, 21, 11, 23, 24, 25, 13, 27, 28, 29, 15, 31, 32, 33, 17, 7, 36, 37, 19, 39, 40, 41, 21, 43, 44, 9, 23, 47, 48, 49, 25, 51, 4, 53, 27, 55, 56, 57, 29, 59, 12, 61, 31, 63, 64, 65, 33, 67, 68, 69, 7, 71, 72, 73, 37, 75, 76

Offset

0,3

Comments

The numerators are given in A135808.

Links

Table of n, a(n) for n=0..75.

Formula

a(n) = denominator(r(n)) with the rationals r(n) from the given e.g.f.

E.g.f. for rationals r(n): (1-exp(x)/(1-log(1-x)))/x.

Example

Rationals r(n)=[0,0,1/3, 1/4, 8/5, 8/3, 159/7, 659/8, 6824/9, 4668, 517581/11,...].

Crossrefs

Cf. A135808 (numerators), A134832.

Sequence in context: A093395 A176774 A373921 * A354998 A094758 A283971

Adjacent sequences: A126349 A126350 A126351 * A126353 A126354 A126355

Keyword

nonn,frac,easy

Author

Wolfdieter Lang, Jan 21 2008

Status

approved