Expansion of Sum_{k>=0} x^(2*k) / (1 - k*x)^(k+1).

Terms

a(0) =1a(1) =0a(2) =1a(3) =2a(4) =4a(5) =10a(6) =30a(7) =98a(8) =338a(9) =1240a(10) =4877a(11) =20496a(12) =91213a(13) =426678a(14) =2090081a(15) =10702438a(16) =57193760a(17) =318283388a(18) =1840036058a(19) =11026424446a(20) =68370955450a(21) =438039068726