cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A134418 Row sums of triangle A134417.

Original entry on oeis.org

1, 5, 14, 48, 152, 496, 1600, 5184, 16768, 54272, 175616, 568320, 1839104, 5951488
Offset: 1

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Author

Gary W. Adamson, Oct 24 2007

Keywords

Examples

			a(4) = 48 = sum of row 4 terms of triangle A134417: (1 + 12 + 15 + 20).
a(4) = 48 = (1, 3, 3, 1) dot (1, 4, 5, 20), given A133632 = (1, 4, 5, 20, 25, 100, ...).
a(3) = 14 = (1, -2, 1) dot (1, 6, 25), = (1, -12, 25), where A048875 = (1, 6, 25, 106, 449, 1902, ...).
		

Crossrefs

Formula

Row sums of triangle A134417. Binomial transform of A133632. Inverse binomial transform of A048875.
Inverse binomial transform of A048875: (l, 6, 25, 106, 449, ...). - Gary W. Adamson, Nov 23 2007
G.f.: (1+3*x)/(1-2*x-4*x^2). - Vladimir Kruchinin, May 06 2011
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