A135808 Numerator of z-sequence for the Sheffer (Appell type) triangle A134832 (circular succession numbers).

0, 0, 1, 1, 8, 8, 159, 659, 6824, 4668, 517581, 4941685, 61043344, 367628164, 10269016939, 147207286503, 2322683458544, 19149119743336, 677630804946393, 2516289402924117, 247342217288517496, 2548438247219028464

Offset: 0

Author

Wolfdieter Lang, Dec 06 2007

Keywords

• nonn
• easy

Comments

The denominators are given in A126352.

For the a- and z-sequences of Sheffer triangles see the W. Lang link under A006232.

Examples

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

Links

• Wolfdieter Lang, Rationals r(n).

Crossrefs

Cf. A126352 (denominators), A134832.

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.