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A164240 as a simple table

na(n)
01
12
24
38
416
530
656
7108
8209
9400
10764
111467
122824
135434
1410461
1520174
1638963
1775317
18145720
19282243
20547261
211062132
222063283
234011819
247807602
2515207879
2629646941
2757841822
28112939007
29220685055
30431535466
31844429711
321653495120
333239839764

[1,2,4,8,16,30,56,108,209,400,764,1467,2824,5434,
 10461,20174,38963,75317,145720,282243,547261,
 1062132,2063283,4011819,7807602,15207879,29646941,
 57841822,112939007,220685055,431535466,844429711,
 1653495120,3239839764]