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 A051300 #14 Jul 25 2024 18:18:24 %S A051300 1,2,4,8,16,77,154,569,1525,6677,14344,55778,141355,655490,721039, %T A051300 1693142,3862456,10248701,21273571,33400928,116741020,128415122, %U A051300 341256634,775382297,1552920526,7708212578,16479033835,68126937218,154939630939,1070433594032 %N A051300 a(n) = a(n-1) + rotate( a(n-1), 1 digit right), a(1) = 1. %H A051300 Harvey P. Dale, <a href="/A051300/b051300.txt">Table of n, a(n) for n = 1..1000</a> %t A051300 NestList[#+FromDigits[RotateRight[IntegerDigits[#]]]&,1,30] (* _Harvey P. Dale_, Dec 27 2021 *) %Y A051300 Cf. A051299. %K A051300 nonn,base,easy %O A051300 1,2 %A A051300 Armand Turpel armandt(AT)unforgettable.com