Central coefficients of number triangle A113582.

Terms

a(0) =1a(1) =2a(2) =10a(3) =37a(4) =101a(5) =226a(6) =442a(7) =785a(8) =1297a(9) =2026a(10) =3026a(11) =4357a(12) =6085a(13) =8282a(14) =11026a(15) =14401a(16) =18497a(17) =23410a(18) =29242a(19) =36101a(20) =44101a(21) =53362a(22) =64010a(23) =76177a(24) =90001a(25) =105626a(26) =123202a(27) =142885a(28) =164837a(29) =189226