Grundy function for turn-at-most-7-coins game.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =127a(8) =128a(9) =256a(10) =512a(11) =911a(12) =1024a(13) =1459a(14) =1749a(15) =1897a(16) =2048a(17) =2518a(18) =2787a(19) =2874a(20) =3320a(21) =3357a(22) =3662a(23) =4004a(24) =4096a(25) =8192a(26) =16384a(27) =28687a(28) =32768a(29) =45107