Duplicate of A059960.

Terms

a(0) =5a(1) =11a(2) =17a(3) =71a(4) =107a(5) =191a(6) =431a(7) =1151a(8) =2591a(9) =139967a(10) =472391a(11) =786431a(12) =995327a(13) =57395627a(14) =63700991a(15) =169869311