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A207099 as a simple table

na(n)
18
236
3164
4760
53504
616224
775114
8347794
91610482
107457403
1134531926
12159901992
13740434409
143428619670
1515876397382
1673516462261
17340421698733
181576339895161
197299321618669
2033799877958800
21156512044508653
22724736938606683

[8,36,164,760,3504,16224,75114,347794,1610482,
 7457403,34531926,159901992,740434409,3428619670,
 15876397382,73516462261,340421698733,
 1576339895161,7299321618669,33799877958800,
 156512044508653,724736938606683]