OFFSET
0,2
COMMENTS
As A093544 contains the odd numbers not of form 12k+9, we map from modulo 12 to modulo 5: 1->0, 3->1, 5->2, 7->3, 11->4.
LINKS
Michael De Vlieger, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (0,0,1,0,0,0,0,0,1,0,0,-1).
FORMULA
a(3n) = 5n, a(3n+1) = 5n+2, a(3n+2) = A047206(n).
G.f.: x*(x^10 + 3*x^9 + 5*x^8 + x^7 + 5*x^6 + 5*x^5 + 2*x^4 + 5*x^3 + 5*x^2 + x + 2)/(1 - x^3 - x^9 + x^12).
MATHEMATICA
CoefficientList[Series[x (x^10 + 3 x^9 + 5 x^8 + x^7 + 5 x^6 + 5 x^5 + 2 x^4 + 5 x^3 + 5 x^2 + x + 2)/(1 - x^3 - x^9 + x^12), {x, 0, 68}], x] (* Michael De Vlieger, Mar 05 2021 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Ralf Stephan, Mar 31 2004
STATUS
approved