A059272 G.f. is g.f. for A059271 divided by g.f. for A059227.

0, 1, 2, 9, 47, 272, 1685, 10939, 73462, 506111, 3557109, 25404296, 183834627, 1344987117, 9932411282, 73937697965, 554234827675, 4179895359240, 31693701617841, 241467983156655, 1847602171074502, 14191725625366331, 109390959408760713

Offset

0,3

Links

Table of n, a(n) for n=0..22.

Crossrefs

Apart from leading terms, half of A059227.

Sequence in context: A002395 A356142 A042793 * A228341 A289576 A370200

Adjacent sequences: A059269 A059270 A059271 * A059273 A059274 A059275

Keyword

nonn

Author

N. J. A. Sloane, Jan 24 2001

Status

approved