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A081992 a(n) = count of numbers formed using the digits of next n numbers.. 2
1, 2, 6, 96, 5040, 1829520, 2162160, 243243000, 49989139200, 3821522664960, 24638764550400, 310331105884800, 48573564399360000, 1589664086049506987520000, 11157385862665072737907200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

a(4) = 96 = 5! - 4!, numbers formed using digits of 7, 8, 9 and 10.

CROSSREFS

Cf. A081991, A081993.

Sequence in context: A035482 A322716 A007870 * A066091 A100704 A123257

Adjacent sequences:  A081989 A081990 A081991 * A081993 A081994 A081995

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Apr 05 2003

EXTENSIONS

More terms from David Wasserman, Jul 28 2004

STATUS

approved

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Last modified March 21 07:23 EDT 2019. Contains 321367 sequences. (Running on oeis4.)