A132924 Triangle read by columns, 2^(n-1) followed by (2^(n-1) + 1), (2^(n-1) + 2), (2^(n-1) + 3), ...

1, 2, 2, 3, 3, 4, 4, 4, 5, 8, 5, 5, 6, 9, 16, 6, 6, 7, 10, 17, 32, 7, 7, 8, 11, 18, 33, 64, 8, 8, 9, 12, 19, 34, 65, 128, 9, 9, 10, 13, 20, 35, 66, 129, 256, 10, 10, 11, 14, 21, 36, 67, 130, 257, 512, 11, 11, 12, 15, 22, 37, 68, 131, 258, 513, 1024, 12, 12, 13, 16, 23, 38, 69, 132

Offset

1,2

Comments

Row sums = A132925. Right border = 2^0, 2^1, 2^2, ...

Links

Table of n, a(n) for n=1..74.

Example

First few rows of the triangle:
  1;
  2, 2;
  3, 3, 4;
  4, 4, 5, 8;
  5, 5, 6, 9, 16;
  6, 6, 7, 10, 17, 32;
  7, 7, 8, 11, 18, 33, 64;
  ...

Maple

A132924 := proc(n, m) n+2^m-m ; end: seq(seq(A132924(n, m), m=0..n), n=0..13) ; # R. J. Mathar, Oct 23 2009

Crossrefs

Cf. A132925.

Sequence in context: A194173 A028825 A326492 * A076890 A103358 A063084

Adjacent sequences: A132921 A132922 A132923 * A132925 A132926 A132927

Keyword

nonn,tabl

Author

Gary W. Adamson, Sep 05 2007

Extensions

More terms from R. J. Mathar, Oct 23 2009

Status

approved