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 A272901 Smallest k>=1 such that A067128(n+k) - A067128(n) is in A067128 or a(n)=0 if there is no such k. 2

%I

%S 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,

%T 1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,

%U 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,2,1,1,2,1,1,1,1,1,1,1,1,2,1,1,1,1,1,2,2,1,1,1,1,1,1,1,2,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,2,1,1,1,1,1,1,2

%N Smallest k>=1 such that A067128(n+k) - A067128(n) is in A067128 or a(n)=0 if there is no such k.

%C For n=151, the required k, if it exists, should be >9800. So one can conjecture that a(151) is the first zero term.

%Y Cf. A067128, A272879.

%K nonn

%O 1,47

%A _Vladimir Shevelev_ and _Peter J. C. Moses_, May 09 2016

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Last modified July 27 05:26 EDT 2021. Contains 346305 sequences. (Running on oeis4.)