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A261510
Triangle-congruent primes greater than 10 with a single digit at the center.
0
1111211111, 1111411111, 3333133333, 9999499999, 1111111111112111111111111111, 1111311331137311333311111111, 1111411441142411444411111111, 1111611661167611666611111111, 1111811881185811888811111111, 3333033003305033000033333333, 3333133113312133111133333333
OFFSET
1,1
COMMENTS
Subsequence of A050758.
LINKS
G. L. Honaker, Jr. and C. Caldwell, 1111211111
EXAMPLE
a(6) can be represented as follows:
......1
.....1 1
....1 3 1
...1 3 3 1
..1 3 7 3 1
.1 3 3 3 3 1
1 1 1 1 1 1 1
CROSSREFS
Cf. A050758.
Sequence in context: A272029 A095425 A038452 * A034650 A035525 A337487
KEYWORD
nonn,base
AUTHOR
Felix Fröhlich, Aug 22 2015
STATUS
approved