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A075833 Least k such that for any p prime dividing n, p does not divide binomial((n+1)*k,k+1) or 0 if no k was found. 0
1, 1, 2, 3, 4, 11, 6, 7, 8, 29, 10, 0, 12, 55, 29, 15, 16, 0, 18, 259, 62, 131, 22, 71, 24, 519, 26, 55, 28, 0, 30, 31, 32, 305, 34, 0, 36, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

It seems that if p is prime a(6p) doesn't exist.

LINKS

Table of n, a(n) for n=1..38.

FORMULA

It seems that if p is prime a(p^m)=p^m-1 m>0

PROG

(PARI) D(k, n)=binomial((n+1)*k, k+1); div(n)=divisors(n); a(n)=if(n<0, 0, k=1; while(prod(i=1, numdiv(n), D(k, n)%if(isprime(component(div(n), i)), component(div(n), i), D(k, n)+1)) == 0, k++); k)

CROSSREFS

Sequence in context: A065633 A160652 A131485 * A265904 A117351 A108467

Adjacent sequences:  A075830 A075831 A075832 * A075834 A075835 A075836

KEYWORD

more,nonn

AUTHOR

Benoit Cloitre, Oct 14 2002

STATUS

approved

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Last modified May 26 19:44 EDT 2019. Contains 323597 sequences. (Running on oeis4.)