A000012^23 * A000594.

Terms

a(0) =1a(1) =-1a(2) =-24a(3) =0a(4) =276a(5) =300a(6) =-1748a(7) =-4300a(8) =4278a(9) =29026a(10) =22724a(11) =-94668a(12) =-242398a(13) =-18722a(14) =856980a(15) =1472252a(16) =-384491a(17) =-5299269a(18) =-7824968a(19) =2088032a(20) =25655442a(21) =38814478a(22) =-69160a(23) =-99735912a(24) =-175711283a(25) =-68736397a(26) =294769680a(27) =686373176a(28) =562588924a(29) =-513324396