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A327867
Even bisection of Möbius transform of A064664, the inverse of EKG-sequence.
2
1, 1, -2, 5, -2, 2, -2, 9, 7, 8, -2, 4, -2, 12, 15, 14, -2, 15, -2, 17, 23, 21, -2, 20, 23, 19, 20, 18, -2, 18, -2, 33, 41, 32, 33, 24, -2, 34, 44, 23, -2, 27, -2, 33, 25, 44, -2, 32, 43, 31, 64, 42, -2, 32, 53, 46, 67, 48, -2, 32, -2, 60, 39, 58, 62, 40, -2, 62, 90, 44, -2, 44, -2, 78, 37, 70, 51, 55, -2, 58, 47, 84, -2, 50
OFFSET
1,3
FORMULA
a(n) = A304526(2*n).
a(p) = -2 for all odd primes p.
CROSSREFS
KEYWORD
sign
AUTHOR
Antti Karttunen, Sep 30 2019
STATUS
approved