A Jacobsthal-Pascal triangle.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =6a(5) =3a(6) =5a(7) =15a(8) =15a(9) =5a(10) =11a(11) =44a(12) =66a(13) =44a(14) =11a(15) =21a(16) =105a(17) =210a(18) =210a(19) =105a(20) =21a(21) =43a(22) =258a(23) =645a(24) =860a(25) =645a(26) =258a(27) =43a(28) =85a(29) =595