Number of nX4 -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X5 binary array with rows and columns of the latter in lexicographically nondecreasing order.
A227058
Number of nX4 -2..2 arrays of 2X2 subblock diagonal sums minus antidiagonal sums for some (n+1)X5 binary array with rows and columns of the latter in lexicographically nondecreasing order.
Terms
- a(0) =35a(1) =329a(2) =2934a(3) =24511a(4) =183000a(5) =1202223a(6) =6979049a(7) =36211854a(8) =170079551a(9) =731624081a(10) =2911895167a(11) =10815978236a(12) =37768115156a(13) =124748330535a(14) =391810133572
External references
- oeis: A227058