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 A316342 #16 May 27 2025 10:09:35
%S A316342 2,2,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,0,1,
%T A316342 0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,0,1,
%U A316342 0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,0,1,0,1,0,0,1,0,1,0,0,1
%N A316342 Fibonacci word A003849 with first two terms replaced by 2's.
%C A316342 A word that is morphic; but neither pure morphic, uniform morphic, primitive morphic, nor recurrent.
%H A316342 Jean-Paul Allouche, Julien Cassaigne, Jeffrey Shallit, and Luca Q. Zamboni, <a href="https://arxiv.org/abs/1711.10807">A Taxonomy of Morphic Sequences</a>, arXiv:1711.10807 [cs.FL], 2017.
%t A316342 Join[{2, 2}, SubstitutionSystem[{0 -> {0, 1}, 1 -> {0}}, {0}, {10}][[1, 3;;]]] (* Paolo Xausa, Jan 30 2025 *)
%Y A316342 Cf. A003849.
%Y A316342 Sequences mentioned in the Allouche et al. "Taxonomy" paper, listed by example number: 1: A003849, 2: A010060, 3: A010056, 4: A020985 and A020987, 5: A191818, 6: A316340 and A273129, 18: A316341, 19: A030302, 20: A063438, 21: A316342, 22: A316343, 23: A003849 minus its first term, 24: A316344, 25: A316345 and A316824, 26: A020985 and A020987, 27: A316825, 28: A159689, 29: A049320, 30: A003849, 31: A316826, 32: A316827, 33: A316828, 34: A316344, 35: A043529, 36: A316829, 37: A010060.
%K A316342 nonn
%O A316342 0,1
%A A316342 _N. J. A. Sloane_, Jul 14 2018