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A039727 [ Even numbers in the sequence generated by a(n)=|a(n-1)+2a(n-2)-n| ], divided by 2. 1
0, 1, 0, 3, 0, 1, 4, 3, 4, 5, 5, 4, 7, 0, 0, 13, 2, 9, 4, 7, 9, 10, 10, 9, 14, 7, 6, 13, 22, 7, 13, 12, 19, 8, 5, 16, 11, 16, 32, 5, 18, 19, 11, 18, 32, 5, 12, 7, 3, 12, 19, 22, 37, 14, 18, 25, 46, 7, 26, 25, 23, 28, 36, 19, 12, 53, 3, 34, 15, 0, 40, 29, 21, 10, 2, 9, 54, 15, 14, 57, 35 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..81.

CROSSREFS

A050821/2.

Sequence in context: A119458 A106356 A091613 * A137176 A143949 A124323

Adjacent sequences:  A039724 A039725 A039726 * A039728 A039729 A039730

KEYWORD

easy,nonn

AUTHOR

James A. Sellers

STATUS

approved

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Last modified February 25 04:05 EST 2018. Contains 299630 sequences. (Running on oeis4.)