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A328992
a(0) = 12; thereafter a(n) is the concatenation of A328991(n),2,A328991(n-1).
1
12, 122121, 1221212122121221, 1221212122121221212212121221212212121221, 12212121221212212122121212212122121212212122121212212122121221212122121221212122121221212212121221
OFFSET
0,1
LINKS
Bill Allombert, Nicolas Brisebarre, and Alain Lasjaunias, On a two-valued sequence and related continued fractions in power series fields, arXiv:1607.07235 [math.NT], 2016-2017; The Ramanujan Journal 45.3 (2018): 859-871. See U_n on page 863.
CROSSREFS
Sequence in context: A056540 A331093 A369523 * A069048 A284287 A100246
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Nov 09 2019
STATUS
approved