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A077799
Smoothly undulating palindromic primes of the general form (ab*10^m-ba)/99 exist for digit lengths a(n).
2
3, 5, 7, 9, 11, 15, 17, 21, 23, 25, 27, 31, 33, 37, 39, 43, 45, 51, 55, 57, 63, 65, 71, 77, 81, 83, 89, 95, 99, 109, 133, 139, 143, 145, 149, 161, 163, 195, 209, 219, 225, 229, 237, 243, 245, 277, 315, 357, 479, 513, 515, 537, 551, 561, 567, 583, 627, 849, 857
OFFSET
1,1
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Nov 16 2002
EXTENSIONS
Edited by Ray Chandler, Aug 17 2011
STATUS
approved