A117267 -id:A117267 - cp's OEIS frontend

A117268 Triangle, binomial transform of the tribonacci sequence.

1, 1, 1, 2, 1, 2, 4, 2, 3, 5, 7, 4, 6, 9, 14, 13, 7, 11, 17, 26, 40, 24, 13, 20, 31, 48, 74, 114, 44, 24, 37, 57, 88, 136, 210, 324, 81, 44, 68, 105, 162, 250, 386, 596, 920

Offset: 1

Graph
List
Refs
Listen
History
Text
Internal format

Gary W. Adamson, Mar 05 2006

nonn
tabl

Leftmost column of the triangle = the tribonacci sequence A000073.

Rightmost diagonal of the triangle = A117189.

			Taking difference rows of A117267: (1; 1, 2; 2, 3, 5; 4, 6, 9, 14;...), we get A117268:
1;
1, 1;
2, 1, 2;
4, 2, 3, 5;
7, 4, 6, 9, 14;
13, 7, 11, 17, 26, 40;
24, 13, 20, 31, 48, 74, 114;
...

Cf. A117267, A117189 (row sums), A000073.

Difference rows of A117267 become rows of A117268

cp's OEIS Frontend

A117268 Triangle, binomial transform of the tribonacci sequence.

Views

Author

Keywords

Comments

Examples

Crossrefs

Formula