A263240 Emirps whose reversals are merely their end digits swapped.

13, 17, 31, 37, 71, 73, 79, 97, 107, 113, 149, 157, 167, 179, 199, 311, 337, 347, 359, 389, 701, 709, 733, 739, 743, 751, 761, 769, 907, 937, 941, 953, 967, 971, 983, 991, 1009, 1223, 1229, 1559, 1669, 3221, 3889, 7229, 9001, 9221, 9227, 9551, 9661, 10007, 10009, 10909, 11717, 11719, 12227, 12323, 12829, 13337, 13933, 14143, 14447, 14449, 14549, 14843, 14947

Offset

1,1

Comments

Subsequence of emirps A006567 with which it is identical for the first 37 terms.

Entries with 4 or more digits consist of a middle repdigit or palindrome part inserted between the end digits.

Links

Table of n, a(n) for n=1..65.

Crossrefs

Cf. A006567, A263241, A263242.

Sequence in context: A225035 A344626 A006567 * A246043 A246045 A359978

Adjacent sequences: A263237 A263238 A263239 * A263241 A263242 A263243

Keyword

nonn,base

Author

Lekraj Beedassy, Oct 13 2015

Status

approved