This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A058294 #17 Jan 28 2022 01:55:25 %S A058294 1,1,1,1,1,2,3,2,1,1,3,7,10,7,3,1,1,4,13,30,43,30,13,4,1,1,5,21,68, %T A058294 157,225,157,68,21,5,1,1,6,31,130,421,972,1393,972,421,130,31,6,1,1,7, %U A058294 43,222,931,3015,6961,9976,6961,3015,931,222,43,7,1 %N A058294 Successive rows of a triangle, the columns of which are generalized Fibonacci sequences S(j). %C A058294 From _Reinhard Zumkeller_, Sep 14 2014: (Start) %C A058294 T(n,k) = A102473(n,k), k=1..n; %C A058294 T(n,k) = A102472(n,k-n+1), k=n..2*n-1; %C A058294 T(n,n) = A001040(n). (End) %H A058294 Reinhard Zumkeller, <a href="/A058294/b058294.txt">>Rows n = 1..125 of table, flattened</a> %H A058294 Russell Walsmith, <a href="/A058294/a058294.pdf">CL-Chemy Transforms Fibonacci-Type Sequences to Arrays</a> %F A058294 The j-th column S(j) is generated by a(n+1) = (n+j)*a(n) + a(n-1), a(0)=0, a(1)=1. %e A058294 Triangle begins: %e A058294 1; %e A058294 1, 1, 1; %e A058294 1, 2, 3, 2, 1; %e A058294 1, 3, 7, 10, 7, 3, 1; %e A058294 ... %t A058294 t[n_, n_] = 1; t[n_, k_] := t[n, k] = If[n<k, 0, (n-1)*t[n-1, k] + t[n-2, k]]; row[n_] := With[{ro = Table[t[n, k], {k, 1, n}]}, Join[Reverse[ro], Rest[ro]]]; Array[row, 8] // Flatten (* _Jean-François Alcover_, Oct 05 2016 *) %o A058294 (Haskell) %o A058294 a058294 n k = a058294_tabf !! (n-1) !! (k-1) %o A058294 a058294_row n = a058294_tabf !! (n-1) %o A058294 a058294_tabf = [1] : zipWith (++) xss (map (tail . reverse) xss) %o A058294 where xss = tail a102473_tabl %o A058294 -- _Reinhard Zumkeller_, Sep 14 2014 %Y A058294 A001040, A001053, A058307, A058308, A058309 are columns of this triangle. %Y A058294 Cf. A102472, A102473. %K A058294 nonn,tabf,nice,easy %O A058294 1,6 %A A058294 _Russell Walsmith_, Dec 07 2000