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 A374799 #14 Jul 22 2024 14:26:51 %S A374799 0,1,2,4,3,5,12,6,7,8,9,11,13,17,18,24,10,14,40,15,16,19,20,22,26,49, %T A374799 50,60,21,23,25,27,38,42,59,61,84,28,29,30,31,32,33,34,35,37,39,41,43, %U A374799 47,48,51,52,58,62,70,71,72,73,83,85,97,98,112,36,44,144 %N A374799 Irregular table T(n, k), n >= 0, k = 1..A048883(n), read by rows; the n-th row lists the numbers m such that A003986(m) = n. %C A374799 A003986 corresponds to a square array, but we consider it here as a flat sequence (when its values are read according along its antidiagonals). %C A374799 As a flat sequence, this is a permutation of the nonnegative integers with inverse A374800. %H A374799 Rémy Sigrist, <a href="/A374799/b374799.txt">Table of n, a(n) for n = 0..16383</a> %H A374799 Rémy Sigrist, <a href="/A374799/a374799.gp.txt">PARI program</a> %H A374799 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %F A374799 T(n, 1) = A000217(n). %F A374799 T(n, A048883(n)) = A046092(n). %e A374799 Table T(n, k) begins: %e A374799 n n-th row %e A374799 - -------- %e A374799 0 0, %e A374799 1 1, 2, 4; %e A374799 2 3, 5, 12; %e A374799 3 6, 7, 8, 9, 11, 13, 17, 18, 24; %e A374799 4 10, 14, 40; %e A374799 5 15, 16, 19, 20, 22, 26, 49, 50, 60; %e A374799 6 21, 23, 25, 27, 38, 42, 59, 61, 84; %e A374799 ... %o A374799 (PARI) \\ See Links section. %Y A374799 See A374817 for a similar sequence. %Y A374799 Cf. A000217, A003986, A046092, A048883, A374800 (inverse). %K A374799 nonn,base,look,tabf %O A374799 0,3 %A A374799 _Rémy Sigrist_, Jul 20 2024