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A059509 Main diagonal of the array A059503. 1
1, 5, 19, 66, 216, 679, 2075, 6211, 18299, 53244, 153366, 438095, 1242709, 3504161, 9830371, 27454614, 76375860, 211732471, 585157679, 1612689439, 4433421131, 12160156560, 33284285874, 90931830431 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

LINKS

Index entries for sequences related to boustrophedon transform

CROSSREFS

Sequence in context: A001047 A099448 A124806 * A137745 A005021 A067325

Adjacent sequences:  A059506 A059507 A059508 * A059510 A059511 A059512

KEYWORD

easy,nonn

AUTHOR

Floor van Lamoen (fvlamoen(AT)hotmail.com), Jan 19 2001

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Last modified February 16 19:23 EST 2012. Contains 205945 sequences.