OFFSET
0,1
LINKS
Bruno Berselli, Table of n, a(n) for n = 0..1000
Philippe A. J. G. Chevalier, On the discrete geometry of physical quantities, Preprint, 2012.
Philippe A. J. G. Chevalier, A "table of Mendeleev" for physical quantities?, Slides from a talk, May 14 2014, Leuven, Belgium.
Index entries for linear recurrences with constant coefficients, signature (7,-21,35,-35,21,-7,1).
FORMULA
G.f.: 2*(1093+30318*x+129879*x^2+129844*x^3+30339*x^4+1086*x^5+x^6)/(1-x)^7. [Bruno Berselli, Aug 29 2012]
a(n) = 2*(7*t*(t*(t+17)+91)+1093), where t=4*n*(n+2). [Bruno Berselli, Aug 29 2012]
MATHEMATICA
LinearRecurrence[{7, -21, 35, -35, 21, -7, 1}, {2186, 75938, 745418, 3959426, 14704202, 43261346, 108110858}, 22] (* Bruno Berselli, Aug 29 2012 *)
PROG
(Magma) [2*(7*t*(t*(t+17)+91)+1093) where t is 4*n*(n+2): n in [0..21]]; // Bruno Berselli, Aug 29 2012
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Aug 28 2012
STATUS
approved