Number of solutions to 1 +-/ 2 +-/ 3 +-/ ... +-/ n = 0.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =4a(7) =8a(8) =0a(9) =3a(10) =37a(11) =80a(12) =6a(13) =17a(14) =461a(15) =868a(16) =190a(17) =364a(18) =5570a(19) =11342a(20) =3993a(21) =7307a(22) =78644