A278430 - OEIS

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A278430

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

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)

OFFSET

1,1

COMMENTS

Column 2 of A278435.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical polynomial of degree 31

FORMULA

Empirical polynomial of degree 31 (see link above)

EXAMPLE

Some solutions for n=4