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A316832 In A316831, replace 2's and 3's with 0's. 1
0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0

LINKS

Table of n, a(n) for n=0..103.

A. Cobham, On the Hartmanis-Stearns problem for a class of tag machines, 9th Annual Symposium on Switching and Automata Theory (SWAT 1968)(FOCS), pp. 51-60, 1968; doi:10.1109/SWAT.1968.20. See Example 7.

MATHEMATICA

Nest[ Flatten[# /. {0 -> {0, 1}, 1 -> {2, 1}, 2 -> {1, 3}, 3 -> {3, 3}}] &, {0}, 7] /. {2 -> 0, 3 -> 0} (* Robert G. Wilson v, Jul 18 2018 *)

CROSSREFS

Cf. A316831, A086747.

Sequence in context: A327183 A188967 A090171 * A086747 A188973 A188970

Adjacent sequences:  A316829 A316830 A316831 * A316833 A316834 A316835

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 18 2018

STATUS

approved

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Last modified July 10 23:30 EDT 2020. Contains 335600 sequences. (Running on oeis4.)