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 A031981 #19 Feb 16 2025 08:32:36 %S A031981 1,2,3,4,5,6,7,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,29, %T A031981 30,31,32,33,34,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54, %U A031981 55,56,57,58,59,60,61,62,63,66,67,68,69,70,71,74,75,76,77 %N A031981 a(1) = 1, a(2) = 2, a(n) = smallest number not the sum of cubes of >= 1 distinct earlier terms. %D A031981 Mihaly Bencze [Beneze], Smarandache recurrence type sequences, Bulletin of pure and applied sciences, Vol. 16E, No. 2, 1997, pp. 231-236. %D A031981 H. Ibstedt, Smarandache Continued Fractions, Smarandache Notions Journal, Vol. 10, No. 1-2-3, 1999, 39-49. %D A031981 F. Smarandache, Properties of numbers, ASU Special Collections, 1973. %H A031981 F. Smarandache, <a href="http://www.gallup.unm.edu/~smarandache/Sequences-book.pdf">Sequences of Numbers Involved in Unsolved Problems</a>. %H A031981 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SmarandacheSequences.html">Smarandache Sequences</a> %Y A031981 Essentially the same as A001476. See also A031980. %K A031981 nonn %O A031981 1,2 %A A031981 J. Castillo (arp(AT)cia-g.com) [Broken email address?] %E A031981 More terms from _Sean A. Irvine_, May 04 2020