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A107044 A symmetric factorial triangle, read by rows: T(n,k) = min(n,k)!. 1
1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 6, 2, 1, 1, 2, 6, 6, 2, 1, 1, 2, 6, 24, 6, 2, 1, 1, 2, 6, 24, 24, 6, 2, 1, 1, 2, 6, 24, 120, 24, 6, 2, 1, 1, 2, 6, 24, 120, 120, 24, 6, 2, 1, 1, 2, 6, 24, 120, 720, 120, 24, 6, 2, 1, 1, 2, 6, 24, 120, 720, 720, 120, 24, 6, 2, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..78.

FORMULA

Given A003983, replace each term with its factorial.

EXAMPLE

First few rows of the triangle are:

1

1, 1

1, 2, 1

1, 2, 2, 1

1, 2, 6, 2, 1

1, 2, 6, 6, 2, 1

1, 2, 6, 24, 6, 2, 1 ...

Row having (1, 2, 3, 2, 1) in A003983 is replaced by (1, 2, 6, 2, 1) in A107044.

CROSSREFS

Cf. A003983.

Sequence in context: A214257 A214248 A152719 * A141591 A174545 A102523

Adjacent sequences:  A107041 A107042 A107043 * A107045 A107046 A107047

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, May 09 2005

EXTENSIONS

Edited by Michael Kleber, Apr 06 2009

Corrected by Philippe Deléham, Nov 07 2011

STATUS

approved

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Last modified September 21 21:32 EDT 2021. Contains 347605 sequences. (Running on oeis4.)