Partial sums of A257259: a(0) = 1; for n >= 1, a(n) = A257259(n) + a(n-1).

Terms

a(0) =1a(1) =0a(2) =0a(3) =-1a(4) =-2a(5) =-5a(6) =-6a(7) =-12a(8) =-20a(9) =-30a(10) =-37a(11) =-41a(12) =-39a(13) =-37a(14) =-51a(15) =-141a(16) =-459a(17) =-1355a(18) =-3521a(19) =-8212a(20) =-17510a(21) =-34685a(22) =-64692a(23) =-114953a(24) =-196617a(25) =-326254a(26) =-527227a(27) =-828432a(28) =-1254932a(29) =-1800115