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A125284 Lower indices of duplicate terms in A125204, i.e., k such that A125204(k) = A125204(k + 1). 0
3, 18, 35, 37, 148, 741, 752, 6814, 13976, 150095, 517213, 11874105 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

18 is in the sequence because A125204(18) = A125204(19) = 266.

MATHEMATICA

l = {0, 1}; Do[x = l[[n]] + l[[Mod[l[[n]], n] + 1]]; If[x == l[[n]], Print[n - 1]]; AppendTo[l, x], {n, 2, 10^9}]

CROSSREFS

Cf. A125204.

Sequence in context: A204192 A108169 A063116 * A097989 A039700 A069147

Adjacent sequences:  A125281 A125282 A125283 * A125285 A125286 A125287

KEYWORD

hard,more,nonn

AUTHOR

Ryan Propper, Jan 25 2007

STATUS

approved

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Last modified February 17 02:22 EST 2020. Contains 331976 sequences. (Running on oeis4.)