Number of different coefficient values in expansion of Product_{i=1..n} (1-q^1+q^2-...+(-q)^i).

Terms

a(0) =1a(1) =2a(2) =4a(3) =4a(4) =6a(5) =16a(6) =22a(7) =15a(8) =19a(9) =46a(10) =56a(11) =34a(12) =40a(13) =92a(14) =106a(15) =61a(16) =69a(17) =154a(18) =172a(19) =96a(20) =106a(21) =232a(22) =254a(23) =139a(24) =151a(25) =326a(26) =352a(27) =190a(28) =204a(29) =436