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A033322 [ 2/n ]. 3
2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..92.

FORMULA

a(n)=2*{1-[(n+2) mod (n+1)]}+[n!^2 mod (n+1)]*[(n+1)!^2 mod (n+2)] - Paolo P. Lava, Aug 29 2007

CROSSREFS

Sequence in context: A152137 A097470 A230093 * A329679 A130713 A236619

Adjacent sequences:  A033319 A033320 A033321 * A033323 A033324 A033325

KEYWORD

easy,nonn

AUTHOR

Jeff Burch

STATUS

approved

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Last modified January 18 16:27 EST 2020. Contains 331011 sequences. (Running on oeis4.)