%I A015056
%S A015056 1,1,5,77,5117,1291677,1333581405,5441592632541,89331571319228381,
%T A015056 5848755670855706968541,1533967407742898704050818525,
%U A015056 1608089383785066648192844419233245
%N A015056 q-Catalan numbers (binomial version) for q=-2.
%D A015056 Paul Barry, On Integer-Sequence-Based Constructions of Generalized Pascal 
               Triangles, Journal of Integer Sequences, Vol. 9 (2006), Article 06.2.4.
%F A015056 {1 / (n+1)_q} {2 n choose n}_q.
%Y A015056 Sequence in context: A028556 A039753 A009485 this_sequence A015973 A136578 
               A057186
%Y A015056 Adjacent sequences: A015053 A015054 A015055 this_sequence A015057 A015058 
               A015059
%K A015056 nonn,easy
%O A015056 0,3
%A A015056 Olivier Gerard (olivier.gerard(AT)gmail.com)