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A007232 as a simple table

na(n)
12
215
374
4409
51951
69765
748827
8256347
91220699
106103515
1130517572
12160216158
13762939452
143814697265
1519073486293
16101327896117
17476837158134

[2,15,74,409,1951,9765,48827,256347,1220699,
 6103515,30517572,160216158,762939452,3814697265,
 19073486293,101327896117,476837158134]