0-sequence of reduction of hexagonal numbers sequence by x^2 -> x+1.

Terms

a(0) =1a(1) =1a(2) =16a(3) =44a(4) =134a(5) =332a(6) =787a(7) =1747a(8) =3736a(9) =7726a(10) =15580a(11) =30760a(12) =59685a(13) =114117a(14) =215472a(15) =402464a(16) =744674a(17) =1366484a(18) =2489175a(19) =4504695a(20) =8104536a(21) =14504226a(22) =25833336a(23) =45811344a(24) =80916169a(25) =142400137a(26) =249760912a(27) =436706132a(28) =761385086a(29) =1323910556