A076542 Numbers n such that A068340(n)=+/-1.

1, 2, 86, 89, 90, 133, 5235, 5236

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).

Any subsequent terms are > 10^12. - Lucas A. Brown, Mar 18 2024

Links

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

Lucas A. Brown, Python program.

Crossrefs

Cf. A068340.

Sequence in context: A078166 A101578 A041881 * A226842 A303892 A305284

Adjacent sequences: A076539 A076540 A076541 * A076543 A076544 A076545

Keyword

hard,nonn,more

Author

Zak Seidov, Oct 19 2002

Status

approved