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A241418
First differences of Arshon's sequence, cf. A099054.
2
1, 1, -2, 2, -1, 1, -2, 1, 1, -1, -1, 2, -2, 1, -1, 2, -1, 1, -2, 1, 1, -1, -1, 1, 1, -2, 1, -1, 2, -1, 1, -2, 2, -1, -1, 2, -2, 1, 1, -1, -1, 1, 1, -2, 2, -1, -1, 2, -2, 1, -1, 2, -1, 1, -2, 1, 1, -1, -1, 1, 1, -2, 1, -1, 2, -1, 1, -2, 2, -1, -1, 1, 1, -2
OFFSET
0,3
COMMENTS
Also first differences of A219762;
a(n) = A099054(n+1) - A099054(n) = A219762(n+2) - A219762(n+1).
LINKS
PROG
(Haskell)
a241418 n = a241418_list !! n
a241418_list = zipWith (-) (tail a099054_list) a099054_list
CROSSREFS
Sequence in context: A327818 A255481 A376604 * A330348 A117229 A264119
KEYWORD
sign
AUTHOR
Reinhard Zumkeller, Aug 08 2014
STATUS
approved