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A082727
a(0)=1, a(n)=abs(n-2*a(n-1)).
0
1, 1, 0, 3, 2, 1, 4, 1, 6, 3, 4, 3, 6, 1, 12, 9, 2, 13, 8, 3, 14, 7, 8, 7, 10, 5, 16, 5, 18, 7, 16, 1, 30, 27, 20, 5, 26, 15, 8, 23, 6, 29, 16, 11, 22, 1, 44, 41, 34, 19, 12, 27, 2, 49, 44, 33, 10, 37, 16, 27, 6, 49, 36, 9, 46, 27, 12, 43, 18, 33, 4, 63, 54, 35, 4, 67, 58, 39, 0, 79, 78, 75
OFFSET
0,4
COMMENTS
a(n)=0 for n=2,78,234,430,1502,2942,6058,6618,18910,54222...
CROSSREFS
Sequence in context: A230845 A194528 A194520 * A264597 A112603 A097294
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Apr 12 2003
STATUS
approved