OFFSET
0,2
EXAMPLE
G.f.: A(x) = 1 + 2*x + 10*x^2 + 18*x^3 + 178*x^4 + 338*x^5 +...
log(A(x)) = 2^1*x + 2^4*x^2/2 + 2^1*x^3/3 + 2^9*x^4/4 + 2^1*x^5/5 + 2^4*x^6/6 + 2^1*x^7/7 + 2^16*x^8/8 +...+ 2^[A001511(n)^2]*x^n/n +...
PROG
(PARI) {a(n)=polcoeff(exp(sum(m=1, n, 2^(valuation(2*m, 2)^2)*x^m/m)+x*O(x^n)), n)}
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Sep 10 2010
EXTENSIONS
Name corrected by Paul D. Hanna, Sep 19 2010
STATUS
approved