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A087756
a(n) = A087745(n+1).
0
1, 3, 3, 5, 5, 15, 15, 17, 17, 51, 51, 85, 85, 255, 255, 257, 257, 771, 771, 1285, 1285, 3855, 3855, 4369, 4369, 13107, 13107, 21845, 21845, 65535, 65535, 65537, 65537, 196611, 196611, 327685, 327685, 983055, 983055, 1114129, 1114129
OFFSET
0,2
COMMENTS
Essentially a duplicate of A087745.
Mitrinovic's triangles A049458, A049460, A051339, A051380 and triangle of Stirling numbers of first kind (A008275) mod 2 converted to decimal.
See also A001317 = [1, 3, 5, 15, 17, ...].
CROSSREFS
KEYWORD
base,easy,nonn,less
AUTHOR
Philippe Deléham, Oct 02 2003
EXTENSIONS
Edited by Omar E. Pol and N. J. A. Sloane, Dec 26 2008
STATUS
approved