# A253574 (b-file synthesized from sequence entry)
1 2
2 3
3 7
4 53
5 59
6 67
7 89
8 383
9 887
10 2027
11 3253
12 5669
13 7993
14 8009
15 9059
16 53633
17 54667
18 56533
19 88883
20 272777777
21 299222299
22 383833883
23 797769997