1,3
B. D. McKay, Catalogues of directed graphs.
Cf. A007079.
Sequence in context: A029521 A012766 A012796 * A016066 A012848 A202621
Adjacent sequences: A096365 A096366 A096367 * A096369 A096370 A096371
more,nonn
David J. Haglin (david.haglin(AT)mnsu.edu), Jul 02 2004
Offset and count for 15 vertices corrected by Brendan McKay (bdm(AT)cs.anu.edu.au), Dec 09 2008