References to A108658

Number of the essentially different permutations of the numbers 0 to n such that the sum of adjacent numbers is a square.
1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 4, 4, 0, 0, 4, 5, 2, 8, 7, 47, 72, 135, 283, 158

1 seqfan posts