Hankel transform of a transform of Jacobsthal numbers.

Terms

a(0) =1a(1) =5a(2) =-9a(3) =-9a(4) =17a(5) =13a(6) =-25a(7) =-17a(8) =33a(9) =21a(10) =-41a(11) =-25a(12) =49a(13) =29a(14) =-57a(15) =-33a(16) =65a(17) =37a(18) =-73a(19) =-41a(20) =81a(21) =45a(22) =-89a(23) =-49a(24) =97a(25) =53a(26) =-105a(27) =-57a(28) =113a(29) =61