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 A355805 #21 Oct 02 2022 10:29:20
%S A355805 1,1,2,3,5,9,15,26,44,75,128,218,373,636,1086,1853,3162,5397,9210,
%T A355805 15719,26826,45782,78133,133343,227568,388373,662809,1131168,1930482,
%U A355805 3294616,5622682,9595828,16376507,27948604,47697869,81402513,138923804,237091241
%N A355805 Number of compositions (ordered partitions) of n into Pell numbers (A000129).
%F A355805 G.f.: 1 / (1 - Sum_{k>=1} x^A000129(k)).
%t A355805 nmax = 37; CoefficientList[Series[1/(1 - Sum[x^Fibonacci[k, 2], {k, 1, 20}]), {x, 0, nmax}], x]
%Y A355805 Cf. A000129, A076739, A290807, A290808.
%K A355805 nonn
%O A355805 0,3
%A A355805 _Ilya Gutkovskiy_, Oct 02 2022