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A059295
2-boustrophedon transform (see A059294) of 1, 1, 1, 1, ...
0
1, 2, 5, 16, 69, 386, 2665, 21856, 207369, 2233346, 26910637, 358654640, 5238083085, 83187634306, 1427274447313, 26308754113344, 518495885082513, 10879652226044546, 242157991346605909, 5698578388375932368, 141364265347273219925, 3686958817004484491522
OFFSET
0,2
CROSSREFS
Sequence in context: A220840 A058673 A296675 * A259408 A251684 A129092
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 25 2001
STATUS
approved