0,4

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1977.

Sequence in context: A133198 A001329 A007101 this_sequence A006903 A115481 A154238

Adjacent sequences: A007100 A007101 A007102 this_sequence A007104 A007105 A007106

dead