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A064227 From Recamán's sequence (A005132): record values in A057167. 12
1, 4, 131, 99734, 181653, 328002, 325374625245, 394178473633984 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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.

LINKS

Table of n, a(n) for n=1..8.

N. J. A. Sloane, My favorite integer sequences, in Sequences and their Applications (Proceedings of SETA '98).

N. J. A. Sloane, FORTRAN program for A005132, A057167, A064227, A064228

Index entries for sequences related to Recamán's sequence

CROSSREFS

Cf. A005132, A057167, A064228.

Sequence in context: A113253 A201977 A194536 * A204079 A252172 A192837

Adjacent sequences:  A064224 A064225 A064226 * A064228 A064229 A064230

KEYWORD

nonn,nice,hard

AUTHOR

N. J. A. Sloane, Sep 22 2001

EXTENSIONS

a(7) and a(8) from Allan Wilks, Nov 06, 2001

a(9) > 10^25. - Benjamin Chaffin, Jun 13 2006

a(9) > 4.28*10^73. - Benjamin Chaffin, Mar 22 2010

STATUS

approved

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Last modified March 26 07:24 EDT 2017. Contains 284111 sequences.