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A089498 Duplicate of A046729. 0
0, 4, 20, 120, 696, 4060, 23660, 137904, 803760, 4684660, 27304196, 159140520 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Index entries for two-way infinite sequences

CROSSREFS

Sequence in context: A091046 A101055 A013197 * A046729 A093123 A092055

Adjacent sequences:  A089495 A089496 A089497 * A089499 A089500 A089501

KEYWORD

dead

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Last modified February 17 08:44 EST 2012. Contains 205998 sequences.