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 A284696 #6 Apr 02 2017 10:03:30 %S A284696 1,2,3,4,5,7,11,13,16,17,19,23,27,29,31,37,41,43,47,53,59,61,67,71,73, %T A284696 79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167, %U A284696 173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257 %N A284696 Numbers of the form p^^k, with p prime and k>=0, where ^^ denotes tetration. %C A284696 Also numbers n such that A284694(n)=A284695(n). %C A284696 Also numbers with no distinct prime numbers in their prime tower factorization (see A182318 for the definition of the prime tower factorization of a number). %C A284696 Also numbers n such that A279513(n) is a power of prime (A000961). %C A284696 This sequence is the union of 1, the prime numbers (A000040), and A275211. %H A284696 Rémy Sigrist, <a href="/A284696/b284696.txt">Table of n, a(n) for n = 1..10000</a> %H A284696 Wikipedia, <a href="https://en.wikipedia.org/wiki/Tetration">Tetration</a> %e A284696 16 = 2^^3 is in the sequence. %Y A284696 Cf. A000040, A000961, A182318, A275211, A279513, A284694, A284695. %K A284696 nonn %O A284696 1,2 %A A284696 _Rémy Sigrist_, Apr 01 2017