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A274258 as a simple table

na(n)
01
17
2133
34140
4154938
56398717
6281086555
712882897819
8609038885805
929481041746958
101453894927584477
1172789271870852237
123689808842747726368
13189006099916444293090
149768094831949586349262
15508712466332195692590121
1626670630123516854616641671
171406503552584980596900001922
1874559627811441047591493767590

[1,7,133,4140,154938,6398717,281086555,
 12882897819,609038885805,29481041746958,
 1453894927584477,72789271870852237,
 3689808842747726368,189006099916444293090,
 9768094831949586349262,508712466332195692590121,
 26670630123516854616641671,
 1406503552584980596900001922,
 74559627811441047591493767590]