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A238852
Right-truncatable, reversible primes in base 100.
8
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 311, 313, 347, 349, 353, 359, 367, 701, 709, 719, 727, 733, 739, 751, 769, 773, 787, 1103, 1109, 1123, 1163, 1181, 1193, 1301, 1303, 1319, 1321, 1327, 1361, 1777
OFFSET
1,1
COMMENTS
See A238850 for definitions, and A238854 for comments on general context.
In base 100, chosen as one of four examples, there are 1552 such numbers.
LINKS
Stanislav Sykora, PARI/GP scripts for genetic threads, with code and comments.
EXAMPLE
The largest number of this type (using hyphens to separate the base 100 digits) is 19-07-93-27-17-37-99-47-19-11.Truncate any even number of decimal digits on its right, and the remaining prefix is still a base-100 reversible prime (e.g., 19079327 and 27930719 are both primes).
PROG
(PARI) See the link.
CROSSREFS
Cf. All in base 10: A238850, 16: A238851, 256: A238853.
Cf. In base n: A238854 (largest), A238855 (totals), A238856 (maximum digits), A238857 (m-digit counts).
Sequence in context: A069683 A069684 A061022 * A079152 A124590 A049573
KEYWORD
nonn,fini,full,base
AUTHOR
Stanislav Sykora, Mar 06 2014
STATUS
approved