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A253085 a(n) = A247649(A247647(n)). 4

%I #7 Feb 08 2015 14:01:36

%S 5,7,17,19,19,31,25,61,71,41,71,77,71,91,77,107,121,85,113,103,217,

%T 251,125,251,281,121,185,151,251,289,151,281,307,251,335,281,311,349,

%U 289,373,307,383,445,247,445,487,289,397,331,389,439,331,463,409,773,895,457,895,997,349

%N a(n) = A247649(A247647(n)).

%C The terms of A247649 are products of terms from this subsequence.

%C It would be nice to have a characterization of this sequence that is independent of A247649.

%H <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a>

%Y Cf, A247647, A247648, A247649.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Feb 06 2015

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)