a(n) = A037276(n) - n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =18a(4) =0a(5) =17a(6) =0a(7) =214a(8) =24a(9) =15a(10) =0a(11) =211a(12) =0a(13) =13a(14) =20a(15) =2206a(16) =0a(17) =215a(18) =0a(19) =205a(20) =16a(21) =189a(22) =0a(23) =2199a(24) =30a(25) =187a(26) =306a(27) =199a(28) =0a(29) =205