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A221405 as a simple table

n a(n)
1 4
2 44
3 436
4 4518
5 47156
6 492102
7 5133044
8 53529806
9 558164472
10 5819704716
11 60677191216
12 632619159318
13 6595610902832
14 68764677891112
15 716926331557236
16 7474513869766556
17 77927543824707370
18 812454058048811426

[4,44,436,4518,47156,492102,5133044,53529806,
 558164472,5819704716,60677191216,632619159318,
 6595610902832,68764677891112,716926331557236,
 7474513869766556,77927543824707370,
 812454058048811426]

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Last modified June 24 00:14 EDT 2021. Contains 345403 sequences. (Running on oeis4.)