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A112080
a(n) = difference between Jacobi-first-non-one(24n+1) and Jacobi-first-non-one(24n-1).
4
0, 2, -2, 0, 4, 0, 8, -2, 0, 0, 0, 12, -6, 0, 12, 0, 2, -2, 0, -6, 0, 18, -6, 0, 0, 0, 2, -6, 0, -4, 0, 2, -2, 0, 18, 0, 2, -2, 0, 24, 0, 6, -2, 0, 0, 0, 6, -8, 0, 4, 0, 2, -2, 0, -6, 0, 32, -6, 0, 0, 0, 2, -6, 0, -10, 0, 2, -2, 0, 28, 0, 2, -2, 0, 4, 0, 38, -2, 0, 0, 0, 6, -6, 0, 4, 0, 2
OFFSET
1,2
COMMENTS
The definition of Jacobi-first-non-one is given in A112056.
LINKS
FORMULA
a(n) = 4*A112054(n)+1.
CROSSREFS
A112081(n) = a(n)/2. A112082 gives the points where a(n) is zero. A112059 gives the nonzero terms.
Sequence in context: A138476 A131381 A295215 * A052176 A138092 A138090
KEYWORD
sign
AUTHOR
Antti Karttunen, Aug 27 2005
STATUS
approved