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A067639 Row 4 of table in A067640. 2
260, 13300, 433620, 11515714, 271846056, 5947557516, 123429078160 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
CROSSREFS
Sequence in context: A264254 A254647 A168187 * A264162 A003734 A216940
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 05 2002
STATUS
approved

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Last modified March 4 12:21 EST 2024. Contains 370532 sequences. (Running on oeis4.)