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A023550 as a simple table

na(n)
12
27
316
432
559
6104
7178
8299
9496
10816
111335
122176
133538
145743
159312
1615088
1724435
1839560
1964034
20103635
21167712
22271392
23439151
24710592
251149794
261860439
273010288
284870784
297881131
3012751976
3120633170
3233385211
3354018448
3487403728
35141422247
36228826048

[2,7,16,32,59,104,178,299,496,816,1335,2176,3538,
 5743,9312,15088,24435,39560,64034,103635,167712,
 271392,439151,710592,1149794,1860439,3010288,
 4870784,7881131,12751976,20633170,33385211,
 54018448,87403728,141422247,228826048]