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A345873
a(n) = A345415(A345872(n), A345872(n+1)).
3
0, 1, -1, 2, 3, -2, -3, -4, 6, -5, 5, 9, 4, 7, -6, -8, -9, 10, 11, -7, -12, 8, -11, -16, 13, -15, -19, -10, 12, 15, 19, -13, 20, -20, 21, 22, 14, -17, 18, 23, 16, 17, -14, -25, 26, -23, 27, -29, -28, -27, -26, 29, -24, -33, 25, 33, -18, 28, -22, 31, -21, -35
OFFSET
1,4
COMMENTS
All terms are distinct.
LINKS
EXAMPLE
a(3) = A345415(A345872(3), A345872(4)) = A345415(2, 3) = -1.
PROG
(PARI) See Links section.
CROSSREFS
Sequence in context: A320053 A098235 A342847 * A114868 A249049 A138239
KEYWORD
sign
AUTHOR
Rémy Sigrist, Jun 27 2021
STATUS
approved