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A150091 as a simple table

na(n)
01
12
26
319
466
5243
6934
73702
814991
961728
10257760
111089242
124650510
1320029566
1486912034
15379572697
161667173042
177359859750
1832638991596
19145339269594
20649585008500
212913037850738
2213103443046264
2359107608896504
24267315011379549
251211823493295456
265505730777691531
2725065801196926460

[1,2,6,19,66,243,934,3702,14991,61728,257760,
 1089242,4650510,20029566,86912034,379572697,
 1667173042,7359859750,32638991596,145339269594,
 649585008500,2913037850738,13103443046264,
 59107608896504,267315011379549,1211823493295456,
 5505730777691531,25065801196926460]