OFFSET
0,2
LINKS
J.-P. Allouche and M. Mendes France, Automata and Automatic Sequences, in: Axel F. and Gratias D. (eds), Beyond Quasicrystals. Centre de Physique des Houches, vol 3. Springer, Berlin, Heidelberg, pp. 293-367, 1995; DOI https://doi.org/10.1007/978-3-662-03130-8_11. See page 6.
J.-P. Allouche and M. Mendes France, Automata and Automatic Sequences, in: Axel F. and Gratias D. (eds), Beyond Quasicrystals. Centre de Physique des Houches, vol 3. Springer, Berlin, Heidelberg, pp. 293-367, 1995; DOI https://doi.org/10.1007/978-3-662-03130-8_11. See page 6. [Local copy]
MAPLE
f(1):= (1, 2): f(2):= (3, 2): f(3) := (1, 4); f(4) := (3, 4); #
A:= [1]:
for i from 1 to 8 do A:= map(f, A) od:
A;
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 02 2021
STATUS
approved