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A083698 Partial quotients of the continued fraction which has convergents with the least possible prime denominators (A072999). 2
2, 1, 1, 2, 2, 4, 6, 8, 4, 6, 38, 10, 14, 16, 6, 2, 12, 24, 100, 36, 74, 46, 44, 52, 18, 8, 46, 114, 20, 70, 6, 38, 190, 44, 76, 14, 118, 218, 34, 14, 82, 32, 28, 110, 76, 126, 230, 46, 578, 138, 192, 306, 424, 38, 148, 468, 218, 210, 174, 300, 244, 60, 744, 482, 190, 344 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..66.

FORMULA

a(1)=2, a(n)=floor(A072999(n)/A072999(n-1)) for n>1. By definition, when n>2, a(n)=(A072999(n)-A072999(n-2))/A072999(n-1) exactly.

PROG

(PARI) l=1; h=2; print1(h, ", "); while(l<2^512, t=l+h; while(!isprime(t), t+=h); print1(floor(t/h), ", "); l=h; h=t)

CROSSREFS

Cf. A072999 (prime denominators), A083699 (numerators), A083700 (decimal).

Sequence in context: A229037 A036863 A209270 * A128976 A199627 A153902

Adjacent sequences:  A083695 A083696 A083697 * A083699 A083700 A083701

KEYWORD

cofr,nonn

AUTHOR

Paul D. Hanna, May 03 2003

STATUS

approved

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Last modified February 22 19:36 EST 2018. Contains 299469 sequences. (Running on oeis4.)