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 A228182 #13 Sep 13 2015 07:43:20 %S A228182 12,810,35152,18,9,67881,6,36,20,12,3,7203,14688,162,350,6,81,75,9,24, %T A228182 25,3648,37905,2125,3,18,455,225,27,3800,81,12,343,54,26730,1540,180, %U A228182 6,14,48,5,10010,96348,798,49,360,9,45,3430,192,126,36,3,225,729,648 %N A228182 a(n) is the smallest k such that the sum of squares of prime divisors of k is equal to the sum of prime divisors of n+k. %C A228182 Smallest k such that A005063(k) = A008472(n+k), where A008472(n) is the sum of the distinct primes dividing n and A005063(n) is the sum of squares of primes dividing n. %e A228182 a(2) = 810 because the prime divisors of 810 are {2, 3, 5}, the prime divisors of 810 + 2 = 812 are {2, 7, 29} and 2^2 + 3^2 + 5^2 = 2 + 7 + 29 = 38, hence 810 is in the sequence. %t A228182 sk[n_]:=Module[{k=1},While[Plus@@(First@#&/@FactorInteger[k]^2)!=Plus@@(First@#&/@FactorInteger[n+k]),k++];k];Array[sk,65,1] %Y A228182 Cf. A005063, A008472, A228181. %K A228182 nonn %O A228182 1,1 %A A228182 _Michel Lagneau_, Aug 15 2013