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A107636 Lesser prime in pair prime(n) +/- n for some n. 1
3, 7, 43, 139, 251, 683, 1549, 2273, 2393, 2731, 3217, 3529, 3943, 4339, 4723, 4799, 4909, 5531, 5801, 7907, 9421, 10009, 11549, 12263, 12791, 13441, 14011, 14683, 15559, 18089, 19087, 20921, 22271, 22391, 23279, 24001, 24107 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Cf. A107637 Larger prime in pair prime(n) +/- n for some n; A064403 Prime(n) + n and prime(n) - n are both primes.

LINKS

Table of n, a(n) for n=1..37.

FORMULA

a(n) = prime(A064403(n)) - A064403(n)

EXAMPLE

a(1) = 3 because A064403(1) = 4 and prime(4) - 4 = 7 - 4 = 3

CROSSREFS

Cf. A064403, A107637.

Sequence in context: A236476 A101208 A050633 * A258435 A074268 A019026

Adjacent sequences:  A107633 A107634 A107635 * A107637 A107638 A107639

KEYWORD

nonn

AUTHOR

Zak Seidov, May 19 2005

STATUS

approved

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Last modified December 8 22:51 EST 2016. Contains 278957 sequences.