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A077129 Smallest number which is relatively prime to all the numbers between successive odd primes. 1
3, 5, 7, 5, 11, 5, 13, 11, 7, 13, 7, 5, 7, 11, 13, 7, 17, 11, 5, 17, 7, 13, 11, 13, 5, 11, 5, 13, 37, 7, 13, 5, 17, 7, 23, 11, 7, 11, 13, 7, 29, 5, 11, 5, 31, 19, 11, 5, 13, 11, 7, 17, 13, 11, 13, 7, 19, 11, 5, 23, 29, 13, 5, 11, 31, 11, 29, 5, 17, 11, 17, 11, 19, 7, 13, 19, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Naturally every member is a prime.

LINKS

Table of n, a(n) for n=0..76.

EXAMPLE

a(5)= 11,is the smallest number coprime to all the numbers from 13 to 17 i.e. 14,15 and 16.

PROG

(PARI) for(n=2, 100, for(i=2, 10^9, f=0:for(k=prime(n)+1, nextprime(prime(n)+1)-1, if(gcd(i, k)>1, f=1:break)): if(!f, print1(i", "):break)))

CROSSREFS

Sequence in context: A222579 A141574 A141261 * A073409 A260234 A151548

Adjacent sequences:  A077126 A077127 A077128 * A077130 A077131 A077132

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Oct 29 2002

EXTENSIONS

More terms from Ralf Stephan, Mar 27 2003

STATUS

approved

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Last modified October 25 19:28 EDT 2020. Contains 338012 sequences. (Running on oeis4.)