%N Erroneous version of A006505.
%C A published but incorrect sequence. The OEIS policy is to include such sequences together with a pointer to the correct entry.
%D J. Riordan, A budget of rhyme scheme counts, pp. 455 - 465 of Second International Conference on Combinatorial Mathematics, New York, April 4-7, 1978. Edited by Allan Gewirtz and Louis V. Quintas. Annals New York Academy of Sciences, 319, 1979.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H J. Riordan, <a href="/A005000/a005000.pdf">Cached copy of paper</a>