Number of board configurations in Mu Torere (for one player).

Terms

a(0) =1a(1) =3a(2) =6a(3) =15a(4) =46a(5) =148a(6) =522a(7) =1869a(8) =6910a(9) =25767a(10) =97256a(11) =369127a(12) =1409362a(13) =5401698a(14) =20778162a(15) =80149210a(16) =309945150a(17) =1201140154a(18) =4663660518a(19) =18137774091a(20) =70646533096a(21) =275537046276