|
| |
|
|
A085505
|
|
a(n)=ceil(((1*n^0+1*n^1+2*n^2+4*n^3)/(1*n^0+2*n^1+1*n^2))^2).
|
|
0
| |
|
|
4, 23, 67, 138, 239, 371, 534, 728, 954, 1212, 1501, 1822, 2175, 2560, 2977, 3425, 3906, 4419, 4963, 5539, 6148, 6788, 7461, 8165, 8901, 9669, 10470, 11302, 12166, 13062, 13990, 14951, 15943, 16967, 18023, 19111, 20231, 21384, 22568
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
MATHEMATICA
| Table[Ceiling[((1+n+2n^2+4n^3)/(1+2n+n^2))^2], {n, 40}] (* From Harvey P. Dale, June 14 2011 *)
|
|
|
CROSSREFS
| Cf. A086790, A086814, A086822, A085899.
Sequence in context: A106684 A179628 A030653 * A065972 A132112 A071246
Adjacent sequences: A085502 A085503 A085504 * A085506 A085507 A085508
|
|
|
KEYWORD
| easy,nonn
|
|
|
AUTHOR
| Wang Dan (wangdan01(AT)lycos.com), Aug 19 2003
|
|
|
EXTENSIONS
| Corrected by M. F. Hasler (maximilian.hasler(AT)gmail.com), Jul 23 2007
|
| |
|
|
