|
Search: id:A136396
|
|
| |
|
| 1, 3, 8, 19, 41, 81, 148, 253, 409, 631, 936, 1343, 1873, 2549
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
FORMULA
|
Binomial transform of [1, 2, 3, 3, 2, 0, 0, 0,...] Narayana transform (A001263) * [1, 2, 1, 0, 0, 0,...].
|
|
EXAMPLE
|
a(3) = 19 = (1, 3, 3, 1) dot (1, 2, 3, 3) = (1 + 6 + 9 + 3).
a(3) = 19 = (1, 6, 6, 1) dot (1, 2, 1, 0) = (1 + 12 + 6 + 0), where (1, 6, 6, 1) = row 4 of the Narayana triangle.
|
|
CROSSREFS
|
Cf. A001263.
Sequence in context: A007326 A067332 A082535 this_sequence A006380 A095846 A153732
Adjacent sequences: A136393 A136394 A136395 this_sequence A136397 A136398 A136399
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 29 2007
|
|
|
Search completed in 0.002 seconds
|
