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A081236 Greatest k<n with mu(n-k)=mu(n)=mu(n+k), where mu=A008683 (Moebius function). 1
0, 0, 0, 0, 2, 0, 4, 4, 0, 4, 8, 8, 10, 8, 0, 12, 14, 14, 12, 16, 0, 16, 20, 20, 7, 25, 23, 24, 24, 23, 28, 28, 32, 28, 34, 32, 34, 24, 38, 36, 38, 37, 40, 40, 36, 45, 42, 44, 41, 46, 36, 48, 50, 50, 40, 52, 36, 57, 54, 56, 48, 61, 54, 60, 64, 64, 64, 64, 54, 68, 68, 68, 66, 68, 57 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

a(A081237(n))=0.

LINKS

Table of n, a(n) for n=1..75.

CROSSREFS

Sequence in context: A177806 A286550 A265511 * A182059 A103328 A167312

Adjacent sequences:  A081233 A081234 A081235 * A081237 A081238 A081239

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Mar 11 2003

STATUS

approved

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Last modified August 21 23:50 EDT 2017. Contains 290941 sequences.