1,2

Robillard, Pierre; On the weighted finite linear spaces. Bull. Soc. Math. Belg. 22 (1970), 227-241.

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

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

Cf. A002877.

Sequence in context: A034341 A034342 A034343 this_sequence A095236 A018536 A162428

Adjacent sequences: A002873 A002874 A002875 this_sequence A002877 A002878 A002879

nonn,nice

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