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 A387088 #17 Sep 03 2025 09:15:38 %S A387088 1,2,40,49,51,98,105,3507,3693,4615,5745,6167,32775,102840,106971, %T A387088 2141244,2419715,4395321,5855239,6933770,10440279,20082095,55680314, %U A387088 95376809,205626971,240438171,319745247,346832939,432366596,877644251 %N A387088 Fixed points of A386482: numbers k such that A386482(k) = k. %H A387088 Rémy Sigrist, <a href="/A387088/a387088.gp.txt">PARI program</a> %H A387088 Rémy Sigrist, <a href="/A387088/a387088.txt">C++ program</a> %e A387088 A386482(40) = 40, so 40 belongs to this sequence. %o A387088 (PARI) \\ See Links section. %o A387088 (Python) # uses generator/imports from A386482 %o A387088 def A387088_gen(): yield from (k for k, ak in enumerate(A386482_gen(), 1) if k == ak) %o A387088 print(list(islice(A387088_gen(), 15))) # _Michael S. Branicky_, Aug 17 2025 %o A387088 (C++) // See Links section. %Y A387088 Cf. A152458, A386482. %K A387088 nonn,more,changed %O A387088 1,2 %A A387088 _Rémy Sigrist_, Aug 16 2025 %E A387088 a(23)-a(30) from _Rémy Sigrist_, Sep 03 2025