Number of permutations of [n] whose lengths of increasing runs are squares.

A317129

Number of permutations of [n] whose lengths of increasing runs are squares.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =9a(6) =40a(7) =151a(8) =571a(9) =2897a(10) =19730a(11) =140190a(12) =953064a(13) =6708323a(14) =54631552a(15) =510143776a(16) =4987278692a(17) =49168919669a(18) =505209884549

External references