A113783 Differences in indices of palindromic five-digit primes.

22, 8, 74, 10, 106, 36, 9, 55, 52, 12, 35, 44, 79, 9, 53, 30, 20, 11, 81, 51, 23, 34, 79, 54, 10, 995, 12, 18, 27, 8, 21, 50, 76, 13, 110, 101, 28, 17, 13, 17, 33, 49, 29, 70, 33, 43, 7, 57, 49, 2823, 28, 8, 64, 60, 30, 44, 29, 13, 36, 34, 66, 73, 69, 27, 63, 7, 50, 41, 26, 10, 44, 28, 27, 944, 24, 193, 7, 43, 27, 26, 28, 19, 6, 96, 25, 17, 25, 49, 20, 24, 39, 26

Offset

1,1

Links

Table of n, a(n) for n=1..92.

Example

First and second 5d palindromic primes are 10301=p(1263),10501=p(1285), hence a(1)=1285-1263=23. Two largest 5d palindromic primes are 98389=p(9448),98689=p(9474), hence a(92)=9474-9448=26. There are exactly 93 five-digit palindromic primes.

Crossrefs

Cf. A002385 = palindromic primes.

Sequence in context: A134911 A298145 A298176 * A298781 A058402 A248032

Adjacent sequences: A113780 A113781 A113782 * A113784 A113785 A113786

Keyword

fini,full,base,nonn

Author

Zak Seidov, Jan 20 2006

Status

approved