Column 2 of A112070.

Terms

a(0) =5a(1) =9a(2) =25a(3) =71a(4) =311a(5) =479a(6) =1559a(7) =5711a(8) =10559a(9) =18191a(10) =31391a(11) =118271a(12) =701399a(13) =366791a(14) =2704679a(15) =2954591a(16) =2155919a(17) =13845841a(18) =6077111a(19) =25411681a(20) =28398241