a(n) = A006561(n) - A290447(n).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =-2a(6) =0a(7) =-21a(8) =2a(9) =-39a(10) =30a(11) =-144a(12) =88a(13) =-118a(14) =176a(15) =-187a(16) =374a(17) =-731a(18) =651a(19) =-194a(20) =1013a(21) =-89a(22) =1605a(23) =-1404a(24) =2327a(25) =325a(26) =3315a(27) =695a(28) =4627a(29) =-5271