|
| |
| |
|
|
|
6, 7, 10, 15, 22, 31, 42, 55, 70, 87, 106, 127, 150, 175, 202, 231, 262, 295, 330, 367, 406, 447, 490, 535, 582, 631, 682, 735, 790, 847, 906, 967, 1030, 1095, 1162, 1231, 1302, 1375, 1450, 1527, 1606, 1687, 1770, 1855, 1942, 2031, 2122, 2215, 2310, 2407, 2506
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,1
|
|
|
FORMULA
| a(n)=3*a(n-1)-3*a(n-2)+a(n-3). G.f.: -(6-11*x+7*x^2)/(x-1)^3 [R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 17 2009]
a(n)=2*n+a(n-1)-1 (with a(0)=6) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 13 2010]
|
|
|
MATHEMATICA
| a[n_]:=n^2+6; [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 15 2008]
|
|
|
PROG
| (PARI) g(n) = for(x=1, n, y=x^2+6; print1(y", "))
|
|
|
CROSSREFS
| A002522, A059100, A117950, A087475, A117951, A117619 [Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 16 2009]
Sequence in context: A083133 A101972 A102727 * A081359 A015825 A164018
Adjacent sequences: A114946 A114947 A114948 * A114950 A114951 A114952
|
|
|
KEYWORD
| easy,nonn
|
|
|
AUTHOR
| Cino Hilliard (hillcino368(AT)gmail.com), Feb 21 2006
|
| |
|
|
