A134505 Replace 0's with 1's in triangle A049310, and take absolute values.

1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 3, 1, 4, 1, 1, 1, 1, 6, 1, 5, 1, 1, 1, 4, 1, 10, 1, 6, 1, 1, 1, 1, 10, 1, 15, 1, 7, 1, 1, 1, 5, 1, 20, 1, 21, 1, 8, 1, 1, 1, 1, 15, 1, 35, 1, 28, 1, 9, 1, 1, 1, 6, 1, 35, 1, 56, 1, 36, 1, 10, 1, 1

Offset

1,8

Comments

Row sums = A134506: (1, 2, 3, 5, 7, 11, 16, ...).

Links

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

Example

First few rows of the triangle are:
  1;
  1,  1;
  1,  1,  1;
  1,  2,  1,  1;
  1,  1,  3,  1,  1;
  1,  3,  1,  4,  1,  1;
  1,  1,  6,  1,  5,  1,  1;
  1,  4,  1, 10,  1,  6,  1,  1;
  1,  1, 10,  1, 15,  1,  7,  1,  1;
  ...

Crossrefs

Cf. A049310, A134506.

Sequence in context: A319734 A211005 A162154 * A329376 A336643 A334039

Adjacent sequences: A134502 A134503 A134504 * A134506 A134507 A134508

Keyword

nonn,tabl

Author

Gary W. Adamson, Oct 28 2007

Extensions

Definition corrected by Eric Rowland, Jun 23 2017

a(43) = 7 corrected and more terms from Georg Fischer, Jun 07 2023

Status

approved