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 A211199 #14 Mar 13 2015 00:39:25 %S A211199 0,1,65536,43046721,4294967296,152587890625,2821109907456, %T A211199 33232930569601,281474976710656,1853020188851841,1,2,65537,43046722, %U A211199 4294967297,152587890626,2821109907457,33232930569602,281474976710657,1853020188851842,65536,65537,131072,43112257 %N A211199 Sum of the 16th powers of the decimal digits of n. %C A211199 This is to exponent 16 as A007953 is to exponent 1, A003132 is to exponent 2, and A055013 is to exponent 4. %e A211199 a(14) = 1^16 + 4^16 = 4294967297 = 641 * 6700417. %o A211199 (PARI) a(n)=my(s);while(n,s+=(n%10)^16;n\=10);s \\ _Charles R Greathouse IV_, May 11 2012 %Y A211199 Cf. A007953, A003132, A055013. %K A211199 nonn,base,easy %O A211199 0,3 %A A211199 _Jonathan Vos Post_, May 11 2012