Functional determinants; partitions of partitions; Euler transform applied twice to all 1's sequence.

A001970

Functional determinants; partitions of partitions; Euler transform applied twice to all 1's sequence.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =6a(4) =14a(5) =27a(6) =58a(7) =111a(8) =223a(9) =424a(10) =817a(11) =1527a(12) =2870a(13) =5279a(14) =9710a(15) =17622a(16) =31877a(17) =57100a(18) =101887a(19) =180406a(20) =318106a(21) =557453a(22) =972796a(23) =1688797a(24) =2920123a(25) =5026410a(26) =8619551a(27) =14722230a(28) =25057499a(29) =42494975

External references