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 A225060 #11 May 29 2013 00:19:10 %S A225060 3,15,23,39,47,71,95,119,167,191,215,239,311,431,479,551,671,719,791, %T A225060 839,959,1151,1319,1511,1559,1679,1991,2159,2351,2519,2831,2999,3071, %U A225060 3671,3839,3911,4031,4079,4199,4679,4991,5351,5519,5591,5711,6431,6551,7391,8111 %N A225060 Discriminants D < 0 such that h(D) > h(D') for D < D' < 0, negated. %C A225060 Essentially records in A014600. %D A225060 H. Heilbronn, On the class number in imaginary quadratic fields, Quart. J. Math. Oxford 5 (1934), pp. 293-301. %H A225060 Charles R Greathouse IV, <a href="/A225060/b225060.txt">Table of n, a(n) for n = 1..675</a> %o A225060 (PARI) r=0;forstep(n=3,1e6,[1,3],t=qfbclassno(-n);if(t>r,r=t;print1(n", "))) %Y A225060 Cf. A014600, A225061, A038552. %K A225060 nonn %O A225060 1,1 %A A225060 _Charles R Greathouse IV_, Apr 26 2013