A059120 Smallest sets of 3 consecutive palindromic primes (palprimes) in arithmetic progression. The first prime of each set is listed.

3, 727, 74747, 79397, 94049, 1120211, 1123211, 1180811, 1190911, 1212121, 1640461, 3627263, 3991993, 7690967, 9932399, 110343011, 114818411, 115737511, 122232221, 127747721, 130222031, 139222931, 144818441, 147313741, 153424351

Offset

1,1

Links

Table of n, a(n) for n=1..25.

Formula

The sequence was found by exhaustive search

Example

94049, 94349, 94649 are consecutive palindromic primes so 94049 is in the list.

Crossrefs

Cf. A059121 (4 palprimes in AP), A059122 (5 palprimes in AP).

Sequence in context: A276455 A231604 A306961 * A300947 A013826 A255012

Adjacent sequences: A059117 A059118 A059119 * A059121 A059122 A059123

Keyword

nonn,base,more

Author

Harvey Dubner (harvey(AT)dubner.com), Jan 07 2001

Status

approved