1,4
Eric Weisstein's World of Mathematics, Strongly Regular Graph
Cf. A076435.
Sequence in context: A171691 A088904 A047972 * A004595 A071681 A135621
Adjacent sequences: A088738 A088739 A088740 * A088742 A088743 A088744
nonn,more
Eric Weisstein (eric(AT)weisstein.com), Oct 12, 2003