a(n) = IntegerPart(PolyGamma(n, 4)).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =2a(11) =-7a(12) =24a(13) =-84a(14) =313a(15) =-1246a(16) =5272a(17) =-23638a(18) =111946a(19) =-558395a(20) =2926014a(21) =-16068765a(22) =92284135a(23) =-553173063a(24) =3454682540a(25) =-22441702499a(26) =151407512979