15,4

CRC Handbook of Combinatorial Designs, 1996, p. 647.

M. Meringer, Tables of Regular Graphs

Sequence in context: A041591 A001150 A108554 this_sequence A065622 A140421 A114317

Adjacent sequences: A014373 A014374 A014375 this_sequence A014377 A014378 A014379

nonn

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