Number of cross-equivalence classes of the symmetric group S_n, where two permutations are cross-equivalent if the multiset of forward distances for every element i in the permutation, for 1 <= i <= n-1, up to and including n, is the same.

A370656

Number of cross-equivalence classes of the symmetric group S_n, where two permutations are cross-equivalent if the multiset of forward distances for every element i in the permutation, for 1 <= i <= n-1, up to and including n, is the same.