A375171 - cp's OEIS frontend

A375171 Square array T(n,k), n>0 and k>0, read by antidiagonals in ascending order, giving the smallest n*k-digit number that, if arranged in an n X k matrix, form k-digit reversible prime in each row and n-digit reversible prime in each column, or -1 if no such number exists.

n	a(n)
1	2
2	37
3	37
4	337
5	1111
6	337
7	3257
8	111331
9	113131
10	3257
11	32233
12	13139731
13	113101311
14	11933371
15	32233
16	322573
17	1111179779
18	113101929311
19	119310213191
20	1119711779
21	322573
22	3222223
23	111111131397
24	113101167919739
25	1193100990013911
26	111971042937997
27	111119111337
28	3222223

[2, 37, 37, 337, 1111, 337, 3257, 111331, 113131, 3257, 32233, 13139731, 113101311, 11933371, 32233, 322573, 1111179779, 113101929311, 119310213191, 1119711779, 322573, 3222223, 111111131397, 113101167919739, 1193100990013911, 111971042937997, 111119111337, 3222223]

cp's OEIS Frontend

A375171 Square array T(n,k), n>0 and k>0, read by antidiagonals in ascending order, giving the smallest n*k-digit number that, if arranged in an n X k matrix, form k-digit reversible prime in each row and n-digit reversible prime in each column, or -1 if no such number exists.

Table of values

List of values