OFFSET
1,4
LINKS
E. Andresen, K. Kjeldsen, On certain subgraphs of a complete transitively directed graph, Discrete Math. 14 (1976), no. 2, 103-119.
Hsien-Kuei Hwang, Emma Yu Jin, Michael J. Schlosser, Asymptotics and statistics on Fishburn Matrices: dimension distribution and a conjecture of Stoimenow, arXiv:2012.13570 [math.CO], Dec 25 2020, p. 29.
EXAMPLE
Triangle begins:
1,
1,1,
2,5,3,
10,40,51,21,
122,644,1236,1029,315,
3346,21496,54060,66780,40635,9765,
196082,1471460,4527228,7328580,6596100,3134565,615195,
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Jul 11 2015
STATUS
approved