OFFSET
0,3
COMMENTS
Numbers which are square, cubic and quartic. - Doug Bell, Jun 03 2017
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (13,-78,286,-715,1287,-1716,1716,-1287,715,-286,78,-13,1).
FORMULA
Multiplicative with a(p^e) = p^(12*e). - David W. Wilson, Aug 01 2001
From Amiram Eldar, Oct 08 2020: (Start)
Sum_{n>=1} 1/a(n) = zeta(12) = 691*Pi^12/638512875 (A013670).
Sum_{n>=1} (-1)^(n+1)/a(n) = 2047*zeta(12)/2048 = 1414477*Pi^12/1307674368000. (End)
a(n) = 13*a(n-1)-78*a(n-2)+286*a(n-3)-715*a(n-4)+1287*a(n-5)-1716*a(n-6)+1716*a(n-7)-1287*a(n-8)+715*a(n-9)-286*a(n-10)+78*a(n-11)-13*a(n-12)+a(n-13). - Wesley Ivan Hurt, Dec 02 2021
MATHEMATICA
Range[0, 30]^12 (* Vladimir Joseph Stephan Orlovsky, May 05 2011 *)
PROG
(Magma) [n^12: n in [0..30]]; // Vincenzo Librandi, May 06 2011
CROSSREFS
KEYWORD
nonn,easy,mult
AUTHOR
STATUS
approved