A034819 - cp's OEIS frontend

A034819 Concatenations C1 and C2 and C3 and C4 are all prime (see the comment lines).

n	a(n)
0	51
1	63
2	123
3	597
4	687
5	987
6	4429
7	12237
8	18291
9	20013
10	29953
11	31863
12	34653
13	48023
14	52703
15	57147
16	59337
17	62097
18	66727
19	71733
20	81263
21	86589
22	101211
23	105501
24	118617
25	121397
26	134013
27	146191
28	147151
29	155937
30	174723
31	175797
32	179191
33	180189
34	205287

[51, 63, 123, 597, 687, 987, 4429, 12237, 18291, 20013, 29953, 31863, 34653, 48023, 52703, 57147, 59337, 62097, 66727, 71733, 81263, 86589, 101211, 105501, 118617, 121397, 134013, 146191, 147151, 155937, 174723, 175797, 179191, 180189, 205287]

cp's OEIS Frontend

A034819 Concatenations C1 and C2 and C3 and C4 are all prime (see the comment lines).

Table of values

List of values