A132110 A007318 + A059268 - A000012 as infinite lower triangular matrices.

1, 1, 2, 1, 3, 4, 1, 4, 6, 8, 1, 5, 9, 11, 16, 1, 6, 13, 17, 20, 32, 1, 7, 18, 27, 30, 37, 64, 1, 8, 24, 42, 50, 52, 70, 128, 1, 9, 31, 63, 85, 87, 91, 135, 256, 1, 10, 39, 91, 141, 157, 147, 163, 264, 512

Offset

0,3

Comments

Row sums = A079583: (1, 3, 8, 19, 42, 89, 184, ...).

Links

Table of n, a(n) for n=0..54.

Example

First few rows of the triangle:
  1;
  1, 2;
  1, 3,  4;
  1, 4,  6,  8;
  1, 5,  9, 11, 16;
  1, 6, 13, 17, 20, 32;
  1, 7, 18, 27, 30, 37, 64;
  1, 8, 24, 42, 50, 52, 70, 128;
  ...

Crossrefs

Cf. A007318, A059268, A000012, A079583.

Sequence in context: A305309 A085643 A174829 * A039912 A163311 A210555

Adjacent sequences: A132107 A132108 A132109 * A132111 A132112 A132113

Keyword

nonn,tabl

Author

Gary W. Adamson, Aug 09 2007

Status

approved