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 A331494 #8 Jan 18 2020 18:56:13 %S A331494 0,1,14,215,3162,46415,681291,681292,9999999,10000000,146779926, %T A331494 2154434689,2154434690,31622776601,464158883361,6812920690579, %U A331494 99999999999999,100000000000000,1467799267622069,21544346900318837,316227766016837933,4641588833612778892,68129206905796128549 %N A331494 Numbers k such that the digits of k^(1/7) begin with k. %H A331494 Chai Wah Wu, <a href="/A331494/b331494.txt">Table of n, a(n) for n = 1..1120</a> %e A331494 681291^(1/7) = 6.8129191633529... which starts with the digits 681291, so 681291 is a term. %Y A331494 Cf. A307371, A307588, A307600, A331492, A331493. %K A331494 nonn,base %O A331494 1,3 %A A331494 _Chai Wah Wu_, Jan 18 2020