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 A243117 #5 May 30 2014 01:04:27 %S A243117 0,1,3,6,8,12,13,14,15,18,20,24,28,30,31,32,36,38,39,40,42,44,48,54, %T A243117 56,57,60,62,63,68,72,74,78,80,84,90,91,93,96,98,102,104,108,110,112, %U A243117 114,120,121,124,126,127,128,132,133,138,140,144,150,152,156,158 %N A243117 Possible values of A242962 in increasing order. %C A243117 A242962(n) = (n*(n+1)/2) mod antisigma(n) = A000217(n) mod A024816(n); where A000217(n) = triangular numbers, A024816(n) = sum of numbers less than n which do not divide n. %C A243117 Complement of A243118. %C A243117 a(n) = A002191(n+1) for n >= 5; where A002191 = possible values of sigma(n). %e A243117 0 is in the sequence because there is a number m such that A242962(m) = 0; m = 3. %Y A243117 Cf. A000203, A002191, A242962, A242963, A243118. %K A243117 nonn %O A243117 1,3 %A A243117 _Jaroslav Krizek_, May 29 2014