A019331 - OEIS

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A019331 as a simple table

n	a(n)
0	13
1	12
2	14
3	183
4	170
5	30941
6	157
7	5229043
8	28562
9	4829007
10	26521
11	149346699503
12	28393
13	25239592216021
14	4482037
15	753327121
16	815730722
17	720867993281778161
18	4824613
19	121826690864620509223
20	810932305

[13,12,14,183,170,30941,157,5229043,28562,4829007, 26521,149346699503,28393,25239592216021,4482037, 753327121,815730722,720867993281778161,4824613, 121826690864620509223,810932305]