T(n,k)=Number of nXk 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

A278435

T(n,k)=Number of nXk 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

Terms

    a(0) =0a(1) =6a(2) =6a(3) =40a(4) =100a(5) =40a(6) =155a(7) =1609a(8) =1609a(9) =155a(10) =456a(11) =19624a(12) =57760a(13) =19624a(14) =456a(15) =1128a(16) =178352a(17) =2116789a(18) =2116789a(19) =178352a(20) =1128a(21) =2472a(22) =1287838a(23) =67971132a(24) =223202074a(25) =67971132a(26) =1287838a(27) =2472a(28) =4950a(29) =7795151

External references