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 A031125 #11 May 01 2017 15:10:09 %S A031125 1,3,8,15,28,46,76,117,180,266,391,559,796,1110,1540,2105,2862,3845, %T A031125 5141,6807,8972,11732,15274,19752,25442,32581,41568,52769,66756,84077, %U A031125 105554,131994,164565,204449,253291,312798,385284,473182,579721,708352 %N A031125 Number of proper factorizations of p1^n*p2^2, where p1 and p2 are distinct primes. %H A031125 Ray Chandler, <a href="/A031125/b031125.txt">Table of n, a(n) for n = 0..10000</a> %F A031125 a(n) = A000291(n) - 1 = A028422(2^n*3^2). - _Ray Chandler_, May 01 2017 %Y A031125 Cf. A000291, A028422. %K A031125 nonn %O A031125 0,2 %A A031125 _Jeff Burch_ %E A031125 Offset changed to 0 and more terms added by _Ray Chandler_, May 01 2017