The number of P-positions in the game of Nim with up to four piles, allowing for piles of zero, such that the total number of objects in all piles doesn't exceed 2n.
A237686
The number of P-positions in the game of Nim with up to four piles, allowing for piles of zero, such that the total number of objects in all piles doesn't exceed 2n.
Terms
- a(0) =1a(1) =7a(2) =14a(3) =50a(4) =63a(5) =105a(6) =148a(7) =364a(8) =413a(9) =491a(10) =546a(11) =798a(12) =883a(13) =1141a(14) =1400a(15) =2696a(16) =2961a(17) =3255a(18) =3382a(19) =3850a(20) =3983a(21) =4313a(22) =4620a(23) =6132a(24) =6469a(25) =6979a(26) =7322a(27) =8870a(28) =9387a(29) =10941
External references
- oeis: A237686