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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A157028 Triangle read by rows, A007318 * A156348.

Original entry on oeis.org

1, 2, 1, 4, 2, 1, 8, 5, 3, 1, 16, 12, 6, 4, 1, 32, 28, 13, 10, 5, 1, 64, 64, 33, 20, 15, 6, 1, 128, 144, 84, 39, 35, 21, 7, 1, 256, 320, 202, 88, 70, 56, 28, 8, 1, 512, 704, 468, 228, 131, 126, 84, 36, 9, 1, 1024, 1536, 1071, 600, 260, 252, 210, 120, 45, 10, 1
Offset: 1

Views

Author

Gary W. Adamson & Mats Granvik, Feb 21 2009

Keywords

Comments

Row sums = A157029: (1, 3, 7, 17, 39, 89, 203, 459,...).

Examples

			1;
2, 1;
4, 2, 1;
8, 5, 3, 1;
16, 12, 6, 4, 1;
32, 28, 13, 10, 5, 1;
64, 64, 33, 20, 15, 6, 1;
128, 144, 84, 39, 35, 21, 7, 1;
256, 320, 202, 88, 70, 56, 28, 8, 1;
512, 704, 468, 228, 131, 126, 84, 36, 9, 1;
1024, 1536, 1071, 600, 260, 252, 210, 120, 45, 10, 1;
2048, 3328, 2441, 1495, 605, 468, 462, 330, 165, 55, 11, 1;
4096, 7168, 5532, 3508, 1595, 864, 924, 792, 495, 220, 66, 12, 1;
...
		

Crossrefs

Formula

Triangle read by rows, binomial transform of A156348.
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