A121268 Generating function = sum over all subsets S of the integers {0,1,2...} of 1/sum(1/x^n for n in S)

1, 2, 3, 7, 11, 25, 44, 94, 176, 367, 703, 1447, 2820, 5740, 11307, 22858, 45280, 91195, 181364, 364176, 725941, 1455473, 2905063, 5818958, 11623598, 23268350, 46503053, 93057123, 186032424, 372189177, 744179880, 1488662935, 2976845896

Offset

0,2

References

J. M. Luck and Anita Mehta, The European Journal of Physics B 57 (2007) 429, Appendi

Links

Table of n, a(n) for n=0..32.

Example

Generating function = 1+2x+3x^2+7x^3+...

Crossrefs

Sequence in context: A191659 A007481 A238312 * A101173 A294451 A005246

Adjacent sequences: A121265 A121266 A121267 * A121269 A121270 A121271

Keyword

nonn

Author

Jean-Marc Luck (luck(AT)dsm-mail.saclay.cea.fr), Aug 23 2006

Status

approved