OFFSET
1,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1).
FORMULA
a(n) = a(n-1)+a(n-16)-a(n-17). G.f. x*(1 +x +x^2 +x^3 +x^4 +x^5 +x^6 +x^7 +x^8 +x^9 +x^10 +x^11 +x^12 +x^13 +x^14 +x^15 +x^16) / ( (1+x) *(1+x^2) *(1+x^4) *(1+x^8) *(x-1)^2 ). - R. J. Mathar, Sep 30 2013
MATHEMATICA
Complement[Range[100], 17Range[Floor[100/17]]] (* Harvey P. Dale, Oct 24 2011 *)
PROG
(Sage) [i for i in range(0, 72) if gcd(17, i) == 1]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Zerinvary Lajos, May 18 2009
STATUS
approved