Central column (ignoring the zeros) of A349815, or leading entries in rows of A349816.

A349818

Central column (ignoring the zeros) of A349815, or leading entries in rows of A349816.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =8a(5) =13a(6) =74a(7) =124a(8) =784a(9) =1364a(10) =9069a(11) =16194a(12) =111144a(13) =202070a(14) =1418196a(15) =2612376a(16) =18642208a(17) =34682348a(18) =250706548a(19) =470066728a(20) =3433030048a(21) =6477333149a(22) =47703926354a(23) =90472092748a(24) =670963514192

External references