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A017284
a(n) = (10*n + 1)^4.
1
1, 14641, 194481, 923521, 2825761, 6765201, 13845841, 25411681, 43046721, 68574961, 104060401, 151807041, 214358881, 294499921, 395254161, 519885601, 671898241, 855036081, 1073283121, 1330863361, 1632240801, 1982119441, 2385443281
OFFSET
0,2
FORMULA
G.f.: (1 + 14636*x + 121286*x^2 + 97516*x^3 + 6561*x^4)/(1-x)^5. - Bruno Berselli, Jul 30 2011
MATHEMATICA
(10*Range[0, 30]+1)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {1, 14641, 194481, 923521, 2825761}, 30] (* Harvey P. Dale, Dec 13 2013 *)
PROG
(Magma) [(10*n+1)^4: n in [0..30]]; // Vincenzo Librandi, Jul 30 2011
(PARI) for(n=0, 22, print1((10*n+1)^4", ")); \\ Bruno Berselli, Jul 30 2011
CROSSREFS
Sequence in context: A133858 A023683 A231118 * A017392 A017656 A186080
KEYWORD
nonn,easy
EXTENSIONS
More terms from Bruno Berselli, Jul 30 2011
STATUS
approved