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 A349550 #8 Dec 15 2021 02:28:32 %S A349550 1,2,1,3,3,2,5,4,3,1,8,7,5,4,2,13,11,8,5,4,3,21,18,13,9,6,4,1,34,29, %T A349550 21,14,10,7,5,2,55,47,34,23,16,11,6,5,3,89,76,55,37,26,18,11,7,5,4, %U A349550 144,123,89,60,42,29,17,12,8,5,1,233,199,144,97,68,47 %N A349550 Meta-Wythoff array based on A097285: M = (M(n,k)), by downward antidiagonals; every row of M is eventually a row of the Wythoff array, W = A035513, and every row of W is a row of M; see Comments. %C A349550 Suppose that (s(1), s(2), ...) is a sequence satisfying s(k) = s(k-1) + s(k-2) for k >= 3. If s(1) and s(2) are positive integers, then there is an index n such that (s(n), s(n+1), ...) is a row of A035513. The n-th row of M is the sequence (s(1), s(2), ...), where (s(1), s(2)) are the n-th pair described in A097285. %C A349550 Every row of W is a row of M; indeed, M consists of all tails of all rows of W. %e A349550 Corner: %e A349550 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233 %e A349550 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322 %e A349550 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377 %e A349550 1, 4, 5, 9, 14, 23, 37, 60, 97, 157, 254, 411 %e A349550 2, 4, 6, 10, 16, 26, 42, 68, 110, 178, 288, 466 %e A349550 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521 %e A349550 1, 5, 6, 11, 17, 28, 45, 73, 118, 191, 309, 500 %e A349550 2, 5, 7, 12, 19, 31, 50, 81, 131, 212, 343, 555 %e A349550 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610 %e A349550 4, 5, 9, 14, 23, 37, 60, 97, 157, 254, 411, 665 %e A349550 Example: The first 7 pairs in A097285 are (1,2), (1,3), (2,3), (1,4), (2,4), (3,4), (1,5), so that the first 7 rows of M are %e A349550 (1,2,3,5,8,...) = (row 1 of W) = Fibonacci numbers, A000045; %e A349550 (1,3 4,7,11,...), which includes row 2 of W, the Lucas numbers, A000032; %e A349550 (2,3,5,8,13,...), a tail of row 1 of W; %e A349550 (1,4,5,9,14,...), which includes row 4 of W; %e A349550 (2,4,6,10,16,...), which includes row 3 of W; %e A349550 (3,4,7,11,18,...), which includes row 2 of W; %e A349550 (1,5,6,11,17,...), which includes row 7 of W. %t A349550 z1 = 30; zc = 20; zr = 20; %t A349550 t1 = {1, 2}; Do[t1 = Join[t1, Riffle[Range[n - 1], n], {n}], {n, 3, z1}]; (* A097285 *) %t A349550 t = Partition[t1, 2]; %t A349550 f[n_] := Fibonacci[n]; r = (1 + Sqrt[5])/2; %t A349550 s[h_, k_] := Table[h*f[n - 1] + k*f[n], {n, 2, zc}]; %t A349550 w = Table[Join[{h = t[[n]][[1]], k = t[[n]][[2]]}, s[h, k]], {n, 1, zr}] %t A349550 TableForm[w] (* A349550 array *) %t A349550 w1[n_, k_] := w[[n]][[k]]; %t A349550 Table[w1[n - k + 1, k], {n, 13}, {k, n, 1, -1}] // Flatten (* A349550 sequence *) %Y A349550 Cf. A000032, A000045, A035513, A097285, A349551, A349552, A349553, A349554. %K A349550 nonn,tabl %O A349550 1,2 %A A349550 _Clark Kimberling_, Nov 21 2021