login
A082599
Palindromic prime units W appearing four times in second-order fractal palindromic primes WxWmWxW, where part WxW is also a palindromic prime.
2
3, 7, 11, 131, 151, 919, 10301, 10501, 10601, 12421, 13331, 13931, 14341, 16061, 16561, 30203, 30403, 30703, 32323, 32423, 33533, 35053, 35153, 36263, 37573, 39293, 71917, 72727, 73637, 76367, 78487, 79697, 90709, 91019, 96469, 97379, 98389, 1035301, 1043401
OFFSET
1,1
COMMENTS
Note also that W may not be further split in this manner (see A082584). - Michael S. Branicky, May 19 2024
LINKS
EXAMPLE
919 is in the sequence because this palindromic prime builds up the second order fractal palindromic prime 919691979196919.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Lekraj Beedassy, May 14 2003
EXTENSIONS
Name updated and a(19) and beyond from Michael S. Branicky, May 19 2024
STATUS
approved