OFFSET
1,5
LINKS
Index entries for linear recurrences with constant coefficients, signature (0,0,0,5,0,0,0,-10,0,0,0,10,0,0,0,-5,0,0,0,1).
FORMULA
G.f.: -x*(x^15-x^14+x^13-x^12-x^11-3*x^10+11*x^9+3*x^8-x^7+3*x^6+11*x^5-3*x^4+x^3+x^2+x+1) / ((x-1)^5*(x+1)^5*(x^2+1)^5). - Colin Barker, Dec 13 2014
a(n) = (2*n+3-(-1)^n+2*(-1)^((2*n+5-(-1)^n)/4))*(n^3+10*n^2+36*n+76+(n^3+2*n^2+20*n-60)*(-1)^n+(n^3+2*n^2-12*n+68)*(-1)^((2*n+5-(-1)^n)/4)-(n^3+10*n^2+4*n-52)*(-1)^((2*n+7+(-1)^n)/4))/2048. - Luce ETIENNE, Aug 27 2016
MATHEMATICA
Flatten[Table[{n, n^Range[4, 2, -1]}, {n, 15}]] (* Harvey P. Dale, Aug 11 2011 *)
PROG
(PARI) s=[]; for(n=1, 100, s=concat(s, [n, n^4, n^3, n^2])); s \\ Colin Barker, Dec 13 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Mohammad K. Azarian, Sep 02 2005
STATUS
approved