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 A084396 #4 Dec 05 2013 19:56:16 %S A084396 1,2,3,6,10,14,19,20,24,30,33,36,44,56,65,76,89,102,115,120,131,148, %T A084396 163,184,200,208,225,244,248,270,283,296,303,316,335,360,393,410,421, %U A084396 440,460,498,541,544,550,594,612,624,661,700,751,760,771,818,855,904,923 %N A084396 a(1) = 1; then numbers in increasing order such that the n-th partial concatenation is divisible by n. %e A084396 a(4) = 6 and 1236 is a multiple of 4. %Y A084396 Cf. A084397. %Y A084396 Cf. A051883, A073894. %K A084396 base,nonn %O A084396 1,2 %A A084396 _Amarnath Murthy_, May 31 2003 %E A084396 More terms from _David Wasserman_, Dec 21 2004