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A081958 Diagonal of A081957. 3
2, 8, 36, 180, 1080, 7560, 60480, 524160, 5241600, 56609280 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Cf. A081957, A081959, A081960.

Sequence in context: A109318 A113327 A129148 * A001540 A129044 A052582

Adjacent sequences:  A081955 A081956 A081957 * A081959 A081960 A081961

KEYWORD

more,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 02 2003

EXTENSIONS

Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 08 2003

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Last modified February 17 13:28 EST 2012. Contains 206031 sequences.