A118010 Difference row triangle of A118009.

2, 1, 3, 2, 3, 6, 1, 3, 6, 12, 1, 2, 5, 11, 23, 4, 5, 7, 12, 23, 46, 1, 5, 10, 17, 29, 52, 98, 1, 2, 7, 17, 34, 63, 115, 213, 6, 7, 9, 16, 33, 67, 130, 245, 458

Offset

1,1

Comments

Leftmost column = continued fraction form of e: (2, 1, 2, 1, 1, 4...); (A003417). Right border = A118009, binomial transform of A003417.

Links

Table of n, a(n) for n=1..45.

Formula

Diagonals of the triangle are difference rows of A118009

Example

First few rows of the triangle are:
2;
1, 3;
2, 3, 6;
1, 3, 6, 12;
1, 2, 5, 11, 23;
4, 5, 7, 12, 23, 46;
1, 5, 10, 17, 29, 52, 98;
...Example: the diagonal (1, 3, 6, 11, 23...) is the first difference row of A118009: (2, 3, 6, 12, 23...).

Crossrefs

Cf. A003417, A118009.

Sequence in context: A072515 A318747 A297367 * A318730 A259974 A243561

Adjacent sequences: A118007 A118008 A118009 * A118011 A118012 A118013

Keyword

nonn

Author

Gary W. Adamson, Apr 09 2006

Status

approved