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 A076660 #18 Feb 16 2021 10:50:04
%S A076660 1,2,6,17,24,26,29,43,83,88,193,207,243,357,534,806,1082,1197,1377,
%T A076660 2246,2362,3148,4342,4570,6463,11687,14305,35681,41369,53410,75292,
%U A076660 98348,146608,219393,246121,257663,419767,476246,596919,860060,912227,1225215,2239828,2727103,2819396
%N A076660 Numbers m such that A076644(m) = floor((2/3)*m*(sqrt(m)+1)).
%C A076660 Sequence is probably infinite.
%H A076660 Michel Marcus, <a href="/A076660/b076660.txt">Table of n, a(n) for n = 1..50</a>
%F A076660 It seems that a(n) is asymptotic to c*exp(d*n) with d around 0.33...
%o A076660 (PARI) lista(nn) = {my(v=vector(nn)); v[1] = 1; for (n=2, nn, v[n] = n + v[n-sqrtint(n)]; ); for (m=1, nn, if (v[m] == floor((2/3)*m*(sqrt(m)+1)), print1(m, ", ")););} \\ _Michel Marcus_, Feb 16 2021
%Y A076660 Cf. A076644.
%K A076660 nonn
%O A076660 1,2
%A A076660 _Benoit Cloitre_, Oct 24 2002
%E A076660 Incorrect term 4 removed and more terms added from _Michel Marcus_, Feb 16 2021