Hankel transform of A106191.

Terms

a(0) =1a(1) =-4a(2) =4a(3) =8a(4) =-32a(5) =32a(6) =64a(7) =-256a(8) =256a(9) =512a(10) =-2048a(11) =2048a(12) =4096a(13) =-16384a(14) =16384a(15) =32768a(16) =-131072a(17) =131072a(18) =262144a(19) =-1048576a(20) =1048576a(21) =2097152a(22) =-8388608a(23) =8388608a(24) =16777216a(25) =-67108864a(26) =67108864a(27) =134217728a(28) =-536870912a(29) =536870912