Partial sums of A068058 + 1.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =11a(5) =13a(6) =26a(7) =28a(8) =51a(9) =61a(10) =74a(11) =107a(12) =109a(13) =224a(14) =247a(15) =249a(16) =321a(17) =411a(18) =462a(19) =849a(20) =873a(21) =990a(22) =1815a(23) =1998a(24) =2576a(25) =3309a(26) =3523a(27) =4297a(28) =4521a(29) =4834