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

Author

Gary W. Adamson, Dec 24 2008

Keywords

• nonn
• tabl

Comments

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

Examples

			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.

Formula

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

Extensions

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