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A088604 as a simple table

na(n)
12
213
3113
41223
512113
6121283
71237547
812184967
9124536947
101219861613
1112181833347
12121339693967
131213536676883
1412673876537547
15121848768729173
161275463876537547
1712429121339693967
18165678739293946997

[2,13,113,1223,12113,121283,1237547,12184967,
 124536947,1219861613,12181833347,121339693967,
 1213536676883,12673876537547,121848768729173,
 1275463876537547,12429121339693967,
 165678739293946997]