A046482 Primes that are palindromic in bases 10 and 14.

2, 3, 5, 7, 11, 9046409, 14203330241, 19119657727650105672775691191

Offset

1,1

Links

Table of n, a(n) for n=1..8.

Patrick De Geest, World!Of Palindromic Primes

Example

9046409_10 = 12b6b21_14. - Jon E. Schoenfield, Apr 10 2021

Prog

(PARI) ispal(p, b) = my(d=digits(p, b)); Vecrev(d) == d;
isok(p) = isprime(p) && ispal(p, 10) && ispal(p, 14); \\ Michel Marcus, Sep 20 2025

Crossrefs

Intersection of A002385 and A029981.

Cf. A002385, A029969.

Primes that are palindromic in bases 10 and b: A046472 (b=2), A046473 (b=3), A046474 (b=4), A046475 (b=6), A046476 (b=7), A046477 (b=8), A046478 (b=9), A046479 (b=11), A046480 (b=12), A046481 (b=13), A046483 (b=15), A046484 (b=16).

Sequence in context: A114835 A046483 A091689 * A046941 A116692 A114983

Adjacent sequences: A046479 A046480 A046481 * A046483 A046484 A046485

Keyword

nonn,hard,base,more

Author

Patrick De Geest, Aug 15 1998

Extensions

a(8) from Max Alekseyev, Sep 20 2025

Status

approved