|
Search: id:A094525
|
|
|
| A094525 |
|
Square array of binomial transforms read by antidiagonals. |
|
+0
2
|
|
| 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 7, 4, 1, 1, 5, 13, 13, 5, 1, 1, 6, 21, 28, 21, 6, 1, 1, 7, 31, 49, 49, 31, 7, 1, 1, 8, 43, 76, 89, 76, 43, 8, 1, 1, 9, 57, 109, 141, 141, 109, 57, 9, 1, 1, 10, 73, 148, 205, 226, 205, 148, 73, 10, 1, 11, 91, 193, 281
(list; table; graph; listen)
|
|
|
OFFSET
|
0,5
|
|
|
COMMENT
|
Rows (and columns) are binomial transforms of [1,k,k(k-1),0,0,0,...], k>=0. One of a family of arrays that converge to A088699.
|
|
FORMULA
|
Square array T(n, k) defined by T(n, k)=1+kn+k(k-1)n(n-1)/2
|
|
EXAMPLE
|
Rows start
1,1,1,1,1,...
1,2,3,4,5,...
1,3,7,13,21,...
1,4,13,28,29,...
1,5,21,49,89,...
|
|
CROSSREFS
|
Cf. A094526.
Sequence in context: A050447 A167172 A166293 this_sequence A130671 A114197 A108350
Adjacent sequences: A094522 A094523 A094524 this_sequence A094526 A094527 A094528
|
|
KEYWORD
|
easy,nonn,tabl
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), May 07 2004
|
|
|
Search completed in 0.002 seconds
|
