A153341 Triangle read by rows, A065941 * A007318

1, 2, 1, 3, 3, 1, 5, 8, 5, 1, 8, 17, 15, 6, 1, 13, 35, 41, 25, 8, 1, 21, 68, 98, 78, 36, 9, 1, 34, 129, 222, 220, 135, 51, 11, 1, 55, 239, 477, 562, 425, 210, 66, 12, 1, 89, 436, 991, 1355, 1222, 751, 314, 86, 14, 1, 144, 785, 2001, 3110, 3248, 2373, 1225, 440, 105, 15, 1, 233, 1399, 3953, 6883, 8171, 6923, 4263, 1905, 605, 130, 17, 1

Offset

0,2

Comments

Row sums = A026581: (1, 3, 7, 19, 47, 123,...)

Links

Table of n, a(n) for n=0..77.

Formula

Triangle read by rows, A065941 * Pascal's triangle.

Example

First few rows of the triangle =
1;
2, 1;
3, 3, 1;
5, 8, 5, 1;
8, 17, 15, 6, 1;
13, 35, 41, 25, 8, 1;
21, 68, 98, 78, 36, 9, 1;
34, 129, 222, 220, 135, 51, 11, 1;
55, 239, 477, 562, 425, 210, 66, 12, 1;
89, 436, 991, 1355, 1222, 751, 314, 86, 14, 1;
...

Crossrefs

Cf. A007318, A065941.

Sequence in context: A209416 A122075 A185675 * A127119 A322265 A066704

Adjacent sequences: A153338 A153339 A153340 * A153342 A153343 A153344

Keyword

nonn,tabl

Author

Gary W. Adamson, Dec 24 2008

Extensions

a(37) = 239 corrected and more terms from Georg Fischer, May 29 2023

Status

approved