A136537 Triangle read by rows: A007318^(-1) * A136536.

1, 1, 2, 2, 3, 3, 4, 4, 10, 4, 9, 9, 13, 25, 5, 21, 21, 21, 51, 51, 6, 51, 51, 51, 66, 166, 91, 7, 127, 127, 127, 127, 267, 442, 148, 8, 323, 323, 323, 323, 379, 1009, 1009, 225, 9, 835, 835, 835, 835, 835, 1465, 3229, 2053, 325, 10, 2188, 2188, 2188, 2188, 2188, 2398, 5926, 8866, 3826, 451, 11, 5798, 5798, 5798, 5798, 5798, 5798, 8570, 21506, 21506, 6656, 606, 12

Offset

1,3

Comments

Row sums = A025566 starting (1, 3, 8, 22, 61, 483, ...).

Left column = A001006: (1, 1, 2, 4, 9, 21, 51, ...).

A007318^(-1) = A130595. - Georg Fischer, Jun 07 2023

Links

Table of n, a(n) for n=1..78.

Formula

Inverse binomial transform of A136536.

Example

First few rows of the triangle:
   1;
   1,  2;
   2,  3,  3;
   4,  4, 10,  4;
   9,  9, 13, 25,   5;
  21, 21, 21, 51,  51,  6;
  51, 51, 51, 66, 166, 91, 7;
  ...

Crossrefs

Cf. A001006, A025566, A130595 (= A007318^(-1)), A136536.

Sequence in context: A035679 A337587 A326439 * A153928 A119446 A302680

Adjacent sequences: A136534 A136535 A136536 * A136538 A136539 A136540

Keyword

nonn,tabl

Author

Gary W. Adamson, Jan 04 2008

Extensions

a(38) = 323 corrected and more terms from Georg Fischer, Jun 07 2023

Status

approved