A327429 - OEIS

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A327429

Record gaps between palindromic primes (upper end) (compare A327428, which gives lower ends of these gaps).

4, 7, 11, 101, 313, 727, 10301, 30103, 70207, 1003001, 3001003, 7014107, 100030001, 300020003, 700020007, 10000500001, 30000500003, 70005450007, 1000008000001, 3000002000003, 7000005000007, 100000323000001, 300000020000003, 700000141000007, 10000000500000001, 30000000800000003, 70000002820000007

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

This sequence is infinite if there exist infinitely many palindromic primes (see comment in A327427).

LINKS

Table of n, a(n) for n=1..27.

CROSSREFS

Cf. A000101, A002385, A327427, A327428.

Sequence in context: A369546 A128836 A061956 * A178939 A072732 A270684

Adjacent sequences: A327426 A327427 A327428 * A327430 A327431 A327432

KEYWORD

nonn,base

AUTHOR

Chai Wah Wu, Sep 09 2019

STATUS

approved