0,1

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

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

D. Shanks, Generalized Euler and class numbers, Math. Comp. 21 (1967), 689-694; 22 (1968), 699.

Sequence in context: A092662 A052811 A078603 this_sequence A078537 A145502 A072444

Adjacent sequences: A001584 A001585 A001586 this_sequence A001588 A001589 A001590

nonn

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