T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise.
A236282
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =81a(1) =432a(2) =432a(3) =2304a(4) =5805a(5) =2304a(6) =9504a(7) =87450a(8) =87450a(9) =9504a(10) =39204a(11) =901317a(12) =4297035a(13) =901317a(14) =39204a(15) =138402a(16) =9293996a(17) =134940646a(18) =134940646a(19) =9293996a(20) =138402a(21) =488601a(22) =73777097a(23) =4211459815a(24) =13055877546a(25) =4211459815a(26) =73777097a(27) =488601a(28) =1553877
External references
- oeis: A236282