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A150016 as a simple table

na(n)
01
12
25
318
466
5244
6969
73882
815884
966549
10279371
111192017
125139781
1322231883
1497151958
15426603705
161881495031
178351057769
1837165328425
19166110559004
20745346186757
213351665129165
2215125494941915
2368426069505670
24310206953710543
251410144514408499
266421163357993262
2729297942391071343

[1,2,5,18,66,244,969,3882,15884,66549,279371,
 1192017,5139781,22231883,97151958,426603705,
 1881495031,8351057769,37165328425,166110559004,
 745346186757,3351665129165,15125494941915,
 68426069505670,310206953710543,1410144514408499,
 6421163357993262,29297942391071343]