|
Search: id:A143125
|
|
| |
|
| 1, 5, 11, 23, 38, 62, 90, 122, 167, 217, 272, 344, 422, 506
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
FORMULA
|
Sum {j=1..n} j*A001462(j), where A001462 = Golomb's sequence, (1, 2, 2, 3, 3, 4, 4, 4,...). Row sums of triangle A143124.
|
|
EXAMPLE
|
a(4) = 23 = 1*1 + 2*2 + 3*2 + 4*12 = (1 + 4 + 6 + 12), given Golomb's sequence (1, 2, 2, 3, 3, 4, 4, 4,...).
a(4) = 23 = sum of row 4 terms of triangle A143124: (8 + 7 + 5 + 3).
|
|
CROSSREFS
|
Cf. A001462, A143124.
Sequence in context: A167610 A143127 A061769 this_sequence A147081 A046628 A118439
Adjacent sequences: A143122 A143123 A143124 this_sequence A143126 A143127 A143128
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 26 2008
|
|
|
Search completed in 0.002 seconds
|
