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 A007419 M5237 #19 Jul 08 2025 17:04:13 %S A007419 33,128,159,267,387,713,1152,929,994,1240,1770,1943,1950,2288,2442, %T A007419 2898,3077,3145,3719,4152,4357,4392,4841,6381,6645,6909,7173,8441, %U A007419 7813,8081,8349,9641,10833,10752,11067,11382,12363,14524,13616,15405,15789,17184 %N A007419 Largest number not the sum of distinct n-th-order polygonal numbers. %D A007419 J. Roberts, Lure of the Integers, Math. Assoc. America, 1992, p. 186. %D A007419 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A007419 <a href="/index/Pol#polygonal_numbers">Index to sequences related to polygonal numbers</a> %Y A007419 Cf. A025524 (number of numbers not the sum of distinct n-th-order polygonal numbers) %Y A007419 Cf. A053614, A001422, A121405 (sequences for triangular, square, and pentagonal numbers) %K A007419 nonn %O A007419 3,1 %A A007419 _N. J. A. Sloane_