3,4

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

C. J. Colbourn and A. Rosa, Maximal partial Steiner triple systems of order v <= 11, Ars. Comb., 20 (1985), 5-11.

Index entries for sequences related to Steiner systems

Sequence in context: A052935 A166022 A052925 this_sequence A121623 A059473 A162508

Adjacent sequences: A006179 A006180 A006181 this_sequence A006183 A006184 A006185

nonn

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