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A029853 Number of connected functions on n points with a loop of length 4. 0
1, 1, 4, 11, 35, 97, 282, 792, 2243, 6275, 17602, 49206, 137713, 385208, 1078667, 3022342, 8478199, 23807190, 66932592, 188394855, 530911452, 1497892857, 4230987944, 11964356354, 33869704270, 95982410945, 272279600817 (list; graph; refs; listen; history; internal format)
OFFSET

4,3

CROSSREFS

Sequence in context: A135919 A034755 A034756 * A104500 A119716 A000626

Adjacent sequences:  A029850 A029851 A029852 * A029854 A029855 A029856

KEYWORD

nonn

AUTHOR

Christian Bower (bowerc(AT)usa.net)

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Last modified February 15 08:10 EST 2012. Contains 205722 sequences.