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 A055570 #5 Jan 20 2020 13:27:10 %S A055570 0,1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,21,22,23,24,25,26,28,36 %N A055570 Sum of digits of (a(n)^4) is greater than or equal to a(n). %e A055570 a(2) = 2 because 2^4 = 16 and 1+6 = 7>= 2 %t A055570 Select[Range[0,50],Total[IntegerDigits[#^4]]>=#&] (* _Harvey P. Dale_, Jan 20 2020 *) %Y A055570 Cf. A055565, A055575, A055568, A055569, A055571, A055572. %K A055570 base,fini,full,nonn %O A055570 0,3 %A A055570 _Henry Bottomley_, May 26 2000 %E A055570 Definition clarified by _Harvey P. Dale_, Jan 20 2020