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A033327 [ 7/n ]. 1
7, 3, 2, 1, 1, 1, 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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

a(n)=7*[C(2*n,n) mod 2]+3*{C[(n+1)^2,n+3] mod 2}+2*[C(n^2,n+2) mod 2]+{C[(n+11)^4,n+13] mod 2}+{C[(n+10)^4,n+12] mod 2}+{C[(n+9)^4,n+11] mod 2}+{C[(n+8)^4,n+10] mod 2} - Paolo P. Lava, Jan 07 2008

CROSSREFS

Sequence in context: A160390 A002194 A256843 * A024584 A132713 A262312

Adjacent sequences:  A033324 A033325 A033326 * A033328 A033329 A033330

KEYWORD

easy,nonn

AUTHOR

Jeff Burch

STATUS

approved

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Last modified November 22 05:55 EST 2019. Contains 329388 sequences. (Running on oeis4.)