1,4

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

V. Jovovic, On the number of m-place relations (in Russian), Logiko-algebraicheskie konstruktsii, Tver, 1992, 59-66.

E. M. Palmer, On the number of n-plexes, Discrete Math., 6 (1973), 377-390. [The numbers are incorrect]

Cf. A000665, A092337.

Sequence in context: A015173 A122570 A088430 this_sequence A003189 A135937 A137532

Adjacent sequences: A051237 A051238 A051239 this_sequence A051241 A051242 A051243

nonn,nice

Vladeta Jovovic (vladeta(AT)eunet.rs)