A250052 - cp's OEIS frontend

A250052 Conjoined Twin Primes: primes p such that p written in base 10 has a prefix q and a suffix r, where q and r are a pair of twin primes (in either order), and q and r overlap (i.e., strlen(q)+strlen(r)>strlen(p)).

n	a(n)
1	113
2	10103
3	15149
4	1021019
5	1231229
6	1321319
7	1481483
8	1621619
9	1931933
10	1951949
11	3232321
12	7127129
13	7307309
14	7547549
15	29129131
16	71471473
17	100910093
18	101410139
19	108910889
20	119411939
21	156415643
22	157315733
23	159715973
24	164516453
25	169816979
26	179117909
27	179217923

[113, 10103, 15149, 1021019, 1231229, 1321319, 1481483, 1621619, 1931933, 1951949, 3232321, 7127129, 7307309, 7547549, 29129131, 71471473, 100910093, 101410139, 108910889, 119411939, 156415643, 157315733, 159715973, 164516453, 169816979, 179117909, 179217923]

cp's OEIS Frontend

A250052 Conjoined Twin Primes: primes p such that p written in base 10 has a prefix q and a suffix r, where q and r are a pair of twin primes (in either order), and q and r overlap (i.e., strlen(q)+strlen(r)>strlen(p)).

Table of values

List of values