

A278430


Number of nX2 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.


1



6, 100, 1609, 19624, 178352, 1287838, 7795151, 41058743, 193149285, 826734193, 3264405727, 12016477160, 41579224479, 136142690453, 424140541353, 1263030700894, 3609095743983, 9929303441355, 26377932553959, 67838309686132
(list;
graph;
refs;
listen;
history;
text;
internal format)




