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 A115652 #5 Jan 25 2014 13:27:55 %S A115652 4,6,9,10,14,15,21,25,49,121,169,403,407,437,451,493,517,551,949,961, %T A115652 1003,1007,1067,1073,1079,1121,1333,1343,1349,1357,1387,1403,1457, %U A115652 1501,3869,3901,3953,4331,4891,5183,5293,10403,10807,11413,11449 %N A115652 Brilliant numbers (A078972) which are the sum of distinct double factorials (A006882). %C A115652 Double factorials 0!! and 1!! are not considered distinct. Note that double factorial (n!!) is different from (n!)!. %e A115652 949 = 13*73 = 9!! + 3!! + 1!!. %Y A115652 Cf. A006882, A078972, A115651, A115653, A115654. %K A115652 nonn,base %O A115652 1,1 %A A115652 _Giovanni Resta_, Jan 28 2006