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A077822 as a simple table

na(n)
01
14
216
363
4246
5960
63745
714608
856980
9222255
10866922
113381492
1213189753
1351447580
14200674984
15782747199
163053161710
1711909076696
1846452209617
19181190182360
20706745329324
212756710954287
2210752749215554
2341941871168172
24163597283059753
25638122961114884

[1,4,16,63,246,960,3745,14608,56980,222255,866922,
 3381492,13189753,51447580,200674984,782747199,
 3053161710,11909076696,46452209617,181190182360,
 706745329324,2756710954287,10752749215554,
 41941871168172,163597283059753,638122961114884]