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A359389 as a simple table

na(n)
01
12
24
38
416
532
672
7176
8384
9976
102496
116560
1217152
1345952
14123520
15336640
16920832
172526976
186979584
1919379712
2053966336
21150892544
22423132160
231190260736
243356964864
259491228672
2626889519104
2776351971328
28217229369344
29619159953408
301767696515072
315054679908352

[1,2,4,8,16,32,72,176,384,976,2496,6560,17152,
 45952,123520,336640,920832,2526976,6979584,
 19379712,53966336,150892544,423132160,1190260736,
 3356964864,9491228672,26889519104,76351971328,
 217229369344,619159953408,1767696515072,
 5054679908352]