login
A138359
List of quadruples of strictly non-palindromic primes without an ordinary prime in between them.
2
44449, 44453, 44483, 44491, 120811, 120817, 120823, 120829, 315037, 315047, 315059, 315067, 583069, 583087, 583127, 583139, 617411, 617429, 617447, 617453, 1553423, 1553429, 1553437, 1553467, 1712329, 1712339, 1712353, 1712369
OFFSET
1,1
COMMENTS
For triples of this kind, see A138358.
For quintuples of this kind, see A138360.
REFERENCES
Karl Hovekamp, Palindromzahlen in adischen Zahlensystemen, 2004
EXAMPLE
Primes:
...
44417 palindromic in bases 50, 106, 135 and 141
44449 strictly non-palindromic
44453 strictly non-palindromic
44483 strictly non-palindromic
44491 strictly non-palindromic
44497 palindromic in base 67 and base 206
...
So {44449, 44453, 44483, 44491} is the first quadruple of strictly non-palindromic primes.
CROSSREFS
KEYWORD
base,nonn,tabf
AUTHOR
Karl Hovekamp, Mar 16 2008
STATUS
approved