Number of open positions in the game Fair Share and Varied Pairs starting with n tokens.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =45a(12) =56a(13) =82a(14) =111a(15) =142a(16) =194a(17) =280a(18) =343a(19) =462a(20) =589a(21) =743a(22) =946a(23) =1232a(24) =1505a(25) =1921a(26) =2381a(27) =2983a(28) =3664a(29) =4536