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A235701 as a simple table

na(n)
01
12
24
38
416
532
664
7126
8252
9490
10980
111890
123780
137252
1414504
1527734
1655468
17105840
18211680
19403368
20806736
211535954
223071908
235845406
2411690812
2522238062
2644476124
2784582428
28169164856
29321661970
30643323940
311223146232
322446292464
334650833040

[1,2,4,8,16,32,64,126,252,490,980,1890,3780,7252,
 14504,27734,55468,105840,211680,403368,806736,
 1535954,3071908,5845406,11690812,22238062,
 44476124,84582428,169164856,321661970,643323940,
 1223146232,2446292464,4650833040]