Matrix 8th power of inverse partition triangle A038498.

Terms

a(0) =1a(1) =-8a(2) =1a(3) =28a(4) =-8a(5) =1a(6) =-20a(7) =20a(8) =-8a(9) =1a(10) =-98a(11) =8a(12) =20a(13) =-8a(14) =1a(15) =154a(16) =-90a(17) =0a(18) =20a(19) =-8a(20) =1a(21) =118a(22) =36a(23) =-62a(24) =0a(25) =20a(26) =-8a(27) =1a(28) =-212a(29) =154