OFFSET
1,5
COMMENTS
Base-7 analog of A202303.
FORMULA
G.f. = (x^4 + 9*x^5 + 36*x^6 + 34*x^7 + 9*x^8 + 36*x^9 + x^10)/(1 - 255*x^3 + 255*x^6 - x^9)
PROG
(PARI) b=7; for(n=0, 200, issquare(n^2\b) & print1(n^2\b, ", "))
(PARI) A204513(n)=polcoeff((x^4 + 9*x^5 + 36*x^6 + 34*x^7 + 9*x^8 + 36*x^9 + x^10)/(1 - 255*x^3 + 255*x^6 - x^9+O(x^n)), n)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
M. F. Hasler, Jan 15 2012
STATUS
approved