series,x,y
Central binomial coefficient,1,2
Central binomial coefficient,2,6
Central binomial coefficient,3,20
Central binomial coefficient,4,70
Central binomial coefficient,5,252
Central binomial coefficient,6,924
Central binomial coefficient,7,3432
Central binomial coefficient,8,12870
Central binomial coefficient,9,48620
Central binomial coefficient,10,184756
Central binomial coefficient,11,705432
Central binomial coefficient,12,2704156
Central binomial coefficient,13,10400600
Central binomial coefficient,14,40116600
Central binomial coefficient,15,155117520