A046492 Palindromic primes expressible as the sum of 3 consecutive palindromic primes.

383, 90709, 94849, 3698963, 308898803, 330595033, 333080333, 399191993, 906989609, 969787969, 33064846033, 36907970963, 39008680093, 39301810393, 90007970009, 96669596669, 3003899983003, 3006918196003, 3033959593303, 3090048400903, 3306986896033, 3336904096333

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..7456

P. De Geest, World!Of Palindromic Primes

Example

969787969 = 323222323 + 323232323 + 323333323.

Mathematica

Select[Total/@Partition[Select[Prime[Range[10^7]], PalindromeQ], 3, 1], PrimeQ[#]&& PalindromeQ[ #]&] (* The program generates the first 8 terms of the sequence. To generate more increase the Range constant. *) (* Harvey P. Dale, Sep 01 2023 *)

Crossrefs

Cf. A002385.

Sequence in context: A046014 A342065 A046491 * A110296 A179664 A212430

Adjacent sequences: A046489 A046490 A046491 * A046493 A046494 A046495

Keyword

nonn,base

Author

Patrick De Geest, Sep 15 1998

Extensions

a(15)-a(22) from Chai Wah Wu, Sep 12 2019

Status

approved