First differences of the rows in the triangle of A116853, starting with 0.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =1a(5) =2a(6) =11a(7) =3a(8) =4a(9) =6a(10) =53a(11) =11a(12) =14a(13) =18a(14) =24a(15) =309a(16) =53a(17) =64a(18) =78a(19) =96a(20) =120a(21) =2119a(22) =309a(23) =362a(24) =426a(25) =504a(26) =600a(27) =720a(28) =16687a(29) =2119