OFFSET
0,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 0..500
Charles H. Conley and Valentin Ovsienko, Quiddities of polygon dissections and the Conway-Coxeter frieze equation, arXiv:2107.01234 [math.CO], 2021.
FORMULA
a(n) = [x^n] (Sum_{k>=0} A143951(k)*x^k)^(n+1)/(n + 1).
a(n) ~ c * d^n / n^(3/2), where d = 4.36034166192381738574769007441081546251391... and c = 0.42401561796424536417811444539653002307... - Vaclav Kotesovec, Nov 04 2021
EXAMPLE
G.f. A(x) = 1 + x + 2*x^2 + 5*x^3 + 15*x^4 + 49*x^5 + 168*x^6 + 595*x^7 + 2160*x^8 + 7998*x^9 + 30095*x^10 + ...
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Mar 27 2018
STATUS
approved