|
Search: id:A131831
|
|
| |
|
| 1, 4, 8, 14, 24, 42, 76, 142, 272, 530, 1044, 2070, 4120, 8218
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
FORMULA
|
Binomial transform of (1, 3, 1, 1, 1,...). For n>0, a(n) = 2*A005126(n).
|
|
EXAMPLE
|
a(3) = 14 = sum of row 3 terms of triangle A131830: (4 + 3 + 3 + 4).
a(3) = 14 = (1, 3, 3, 1) dot (1, 3, 1, 1) = (1 + 9 + 3 + 1).
a(3) = 14 = 2*A005126(3) = 2*7.
|
|
CROSSREFS
|
Cf. A131830, A005126.
Sequence in context: A073612 A060064 A045474 this_sequence A100314 A105143 A020185
Adjacent sequences: A131828 A131829 A131830 this_sequence A131832 A131833 A131834
|
|
KEYWORD
|
nonn,easy,more
|
|
AUTHOR
|
Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 20 2007
|
|
|
Search completed in 0.002 seconds
|
