a(n) = A213709(n) - A255071(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =1a(7) =1a(8) =1a(9) =1a(10) =2a(11) =6a(12) =16a(13) =36a(14) =71a(15) =126a(16) =204a(17) =303a(18) =414a(19) =526a(20) =652a(21) =907a(22) =1705a(23) =4213a(24) =11329a(25) =29670a(26) =73408a(27) =171345a(28) =379494a(29) =802875