Number of (n+2)X(1+2) arrays of permutations of 0..n*3+5 filled by rows with each element moved 0 or 1 knight moves, and rows and columns in increasing lexicographic order.
A263952
Number of (n+2)X(1+2) arrays of permutations of 0..n*3+5 filled by rows with each element moved 0 or 1 knight moves, and rows and columns in increasing lexicographic order.
Terms
- a(0) =6a(1) =36a(2) =158a(3) =614a(4) =2596a(5) =11045a(6) =47252a(7) =200690a(8) =856618a(9) =3643558a(10) =15489384a(11) =65863683a(12) =280302564a(13) =1192057233a(14) =5068539465a(15) =21551848324a(16) =91660701076a(17) =389792005662
External references
- oeis: A263952