|
Search: id:A136472
|
|
| |
|
| 1, 8, 136, 6552, 973832, 465833856, 739387804752, 3992649623654752, 74888425049167499424, 4962998789388515787006336, 1178375010889854741001146703936, 1013755301703927988518902015091910656
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Triangle T = A136470 is defined by: column 0 of T^m = {C(m*2^n, n), n>=0}.
|
|
PROGRAM
|
(PARI) {a(n)=local(M=matrix(n+3, n+3, r, c, binomial(r*2^(c-1), c-1)), P); P=matrix(n+3, n+3, r, c, binomial((r+1)*2^(c-1), c-1)); (P~*M~^-1)[n+3, 3]/4^n}
|
|
CROSSREFS
|
Cf. A136470; A136471.
Sequence in context: A049211 A024283 A134053 this_sequence A145404 A101388 A050789
Adjacent sequences: A136469 A136470 A136471 this_sequence A136473 A136474 A136475
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Paul D. Hanna (pauldhanna(AT)juno.com), Jan 01 2008
|
|
|
Search completed in 0.002 seconds
|
