A357766 Number of n X n tables where rows represent distinct permutations of { 1, 2, ..., n } and the column sums are equal.

1, 2, 12, 2448, 6828480, 1386834134400, 20251525440458995200, 33182473074940946503237478400

Offset

1,2

Links

Table of n, a(n) for n=1..8.

Formula

a(n) = A357767(n) * n!.

Crossrefs

Cf. A356722, A356723, A356724, A356725, A357767, A357768.

Sequence in context: A253788 A252738 A360067 * A050649 A356722 A357765

Adjacent sequences: A357763 A357764 A357765 * A357767 A357768 A357769

Keyword

hard,more,nonn

Author

Max Alekseyev, Oct 12 2022

Status

approved