|
Search: id:A135223
|
|
| |
|
| 1, 3, 2, 6, 2, 3, 10, 2, 3, 4, 15, 2, 3, 4, 5, 21, 2, 3, 4, 5, 6, 28, 2, 3, 4, 5, 6, 7, 36, 2, 3, 4, 5, 6, 7, 8, 45, 2, 3, 4, 5, 6, 7, 8, 9, 55, 2, 3, 4, 5, 6, 7, 8, 9, 10
(list; table; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
Row sums = A028387
|
|
FORMULA
|
A000012 * A127648 * A103451 as infinite lower triangular matrices. Replace left border of 1's in A002260 with (1, 3, 6, 10, 15,...).
|
|
EXAMPLE
|
First few rows of the triangle are:
1;
3, 2;
6, 2, 3;
10, 2, 3, 4;
15, 2, 3, 4, 5;
...
|
|
CROSSREFS
|
Cf. A002260, A127648, A103451.
Sequence in context: A097887 A019761 A133519 this_sequence A143310 A131897 A061187
Adjacent sequences: A135220 A135221 A135222 this_sequence A135224 A135225 A135226
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 23 2007
|
|
|
Search completed in 0.002 seconds
|
