1,3

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

Walsh, T. R. S.; Generating nonisomorphic maps without storing them. SIAM J. Algebraic Discrete Methods 4 (1983), no. 2, 161-178.

Sequence in context: A145974 A147544 A052974 this_sequence A078718 A081393 A129326

Adjacent sequences: A006392 A006393 A006394 this_sequence A006396 A006397 A006398

nonn,more

N. J. A. Sloane (njas(AT)research.att.com).