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A094688 as a simple table

na(n)
00
11
24
314
445
5140
6428
71297
83912
911770
1035365
11106184
12318696
13956321
142869340
158608630
1625826877
1777482228
18232449268
19697351985
202092062720
216276199106
2218828615029
2356485873744
24169457667600
25508373077825
261525119354868

[0,1,4,14,45,140,428,1297,3912,11770,35365,106184,
 318696,956321,2869340,8608630,25826877,77482228,
 232449268,697351985,2092062720,6276199106,
 18828615029,56485873744,169457667600,508373077825,
 1525119354868]