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A076542 Numbers n such that A068340(n)=+/-1. 6
1, 2, 86, 89, 90, 133, 5235, 5236 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Presumably A068340(n)=0 only for n=10; so I looked for n's such that A068340(n)=+/-s; here s=1 (and n<=800000). For s=6, there's no solution at all! For s=8, n=34 (only 1 solution); for s=7, n={55, 56} (2 solutions); for s=9, n={5, 51, 52} (3 solutions) (for n up to 800000).

LINKS

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

CROSSREFS

Cf. A068340.

Sequence in context: A078166 A101578 A041881 * A226842 A303892 A305284

Adjacent sequences:  A076539 A076540 A076541 * A076543 A076544 A076545

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, Oct 19 2002

STATUS

approved

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Last modified November 15 04:00 EST 2018. Contains 317225 sequences. (Running on oeis4.)