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A064227 From Recamán's sequence (A005132): record values in A057167. 12

%I

%S 1,4,131,99734,181653,328002,325374625245,394178473633984

%N From Recamán's sequence (A005132): record values in A057167.

%C Let R(n) = n-th term of Recamán's sequence (A005132); consider values of R(n) that take a record number of steps to appear (A064228); sequence gives corresponding values of n.

%H N. J. A. Sloane, <a href="http://neilsloane.com/doc/sg.txt">My favorite integer sequences</a>, in Sequences and their Applications (Proceedings of SETA '98).

%H N. J. A. Sloane, <a href="/A005132/a005132.txt">FORTRAN program for A005132, A057167, A064227, A064228</a>

%H <a href="/index/Rea#Recaman">Index entries for sequences related to Recamán's sequence</a>

%Y Cf. A005132, A057167, A064228.

%K nonn,nice,hard

%O 1,2

%A _N. J. A. Sloane_, Sep 22 2001

%E a(7) and a(8) from _Allan Wilks_, Nov 06, 2001

%E a(9) > 10^25. - _Benjamin Chaffin_, Jun 13 2006

%E a(9) > 4.28*10^73. - _Benjamin Chaffin_, Mar 22 2010

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Last modified January 22 08:45 EST 2018. Contains 298042 sequences.