Number of n X 5 (-1,0,1) arrays of determinants of 2 X 2 subblocks of some (n+1) X 6 binary array with rows and columns of the latter in lexicographically nondecreasing order.
A226869
Number of n X 5 (-1,0,1) arrays of determinants of 2 X 2 subblocks of some (n+1) X 6 binary array with rows and columns of the latter in lexicographically nondecreasing order.
Terms
- a(0) =16a(1) =199a(2) =2866a(3) =41222a(4) =523701a(5) =5692900a(6) =53537470a(7) =442630782a(8) =3265819433a(9) =21794415254a(10) =133089115844a(11) =750997324318
External references
- oeis: A226869