|
| |
|
|
A010013
|
|
a(0) = 1, a(n) = 23*n^2 + 2 for n>0.
|
|
1
| |
|
|
1, 25, 94, 209, 370, 577, 830, 1129, 1474, 1865, 2302, 2785, 3314, 3889, 4510, 5177, 5890, 6649, 7454, 8305, 9202, 10145, 11134, 12169, 13250, 14377, 15550, 16769, 18034, 19345, 20702, 22105, 23554, 25049, 26590, 28177, 29810, 31489, 33214, 34985, 36802, 38665
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
LINKS
| Bruno Berselli, Table of n, a(n) for n = 0..1000
Index to sequences with linear recurrences with constant coefficients, signature (3,-3,1).
|
|
|
FORMULA
| G.f.: (1+x)*(1+21*x+x^2)/(1-x)^3. - Bruno Berselli, Feb 06 2012
E.g.f.: (x*(x+1)*23+2)*e^x-1. - Gopinath A. R., Feb 14 2012
|
|
|
MATHEMATICA
| Join[{1}, 23 Range[41]^2 + 2] (* Bruno Berselli, Feb 06 2012 *)
|
|
|
CROSSREFS
| Cf. A206399.
Sequence in context: A044212 A044593 A090659 * A063769 A099771 A158547
Adjacent sequences: A010010 A010011 A010012 * A010014 A010015 A010016
|
|
|
KEYWORD
| nonn,easy,changed
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
