a(n) = A100092(n^2+1).

Terms

a(0) =1a(1) =1a(2) =1a(3) =6a(4) =11a(5) =35a(6) =73a(7) =182a(8) =374a(9) =816a(10) =1615a(11) =3244a(12) =6160a(13) =11678a(14) =21353a(15) =38742a(16) =68541a(17) =120082a(18) =206448a(19) =351386a(20) =589237a(21) =978626a(22) =1605582a(23) =2610694a(24) =4201319a(25) =6705559a(26) =10607058a(27) =16652362a(28) =25937765a(29) =40122446