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A067633 a(1) = 1; sequence of digits of a(n)^2 is a subsequence of the sequence of digits of a(n+1)^2. 3

%I

%S 1,4,13,37,117,367,3667,36667,366667

%N a(1) = 1; sequence of digits of a(n)^2 is a subsequence of the sequence of digits of a(n+1)^2.

%C Probably infinite. Does the obvious pattern continue?

%Y Cf. A014563, A066825.

%K nonn,base

%O 1,2

%A _David W. Wilson_, Feb 05 2002

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Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)