The number of partitions of n which represent Chomp positions with Sprague-Grundy value 9.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =4a(10) =2a(11) =10a(12) =12a(13) =12a(14) =20a(15) =10a(16) =24a(17) =32a(18) =44a(19) =31a(20) =38a(21) =58a(22) =66a(23) =68a(24) =82a(25) =84a(26) =128a(27) =199a(28) =137a(29) =227