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A089495 mu(prime(n)+1), where mu is the Moebius function. 4
-1, 0, 1, 0, 0, 1, 0, 0, 0, -1, 0, 1, -1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, -1, -1, 0, 0, -1, 0, 0, 0, 1, 0, 0, -1, 0, -1, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 1, -1, 0, 0, 0, 0, 1, -1, 0, 0, 0, 0, -1, 0, 0, -1, 0, 0, 1, 1, -1, -1, 0, 1, 0, -1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 1, -1, 0, 0, -1, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..118.

Eric Weisstein's World of Mathematics, Moebius Function

MATHEMATICA

Table[MoebiusMu[Prime[n]+1], {n, 150}]

CROSSREFS

Cf. A049098 (primes p such that mu(p+1) = 0), A078329 (primes p such that mu(p+1) = -1), A089523 (primes p such that mu(p+1) = 1), A089451 (mu(p-1) for prime p), A089496 (mu(p+1)+mu(p-1) for prime p), A089497 (mu(p+1)-mu(p-1) for prime p).

A067461(n) - 1.

Sequence in context: A023531 A320841 A243148 * A173857 A114482 A186518

Adjacent sequences:  A089492 A089493 A089494 * A089496 A089497 A089498

KEYWORD

sign

AUTHOR

T. D. Noe, Nov 04 2003

STATUS

approved

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Last modified January 18 16:27 EST 2020. Contains 331011 sequences. (Running on oeis4.)