Partial sums of A080670.

Terms

a(0) =1a(1) =3a(2) =6a(3) =28a(4) =33a(5) =56a(6) =63a(7) =86a(8) =118a(9) =143a(10) =154a(11) =377a(12) =390a(13) =417a(14) =452a(15) =476a(16) =493a(17) =725a(18) =744a(19) =969a(20) =1006a(21) =1217a(22) =1240a(23) =1473a(24) =1525a(25) =1738a(26) =1771a(27) =1998a(28) =2027a(29) =2262