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A296296 as a simple table

na(n)
02
13
215
336
479
5155
6288
7513
8889
91510
102529
114193
126914
1311328
1418494
1530107
1648921
1779385
18128702
19208524
20337706
21546755
22885033
231432409
242318114
253751248
266070142
279822227
2815893265
2925716449
3041610734
3167328268
32108940186
33176269708
34285211220

[2,3,15,36,79,155,288,513,889,1510,2529,4193,6914,
 11328,18494,30107,48921,79385,128702,208524,
 337706,546755,885033,1432409,2318114,3751248,
 6070142,9822227,15893265,25716449,41610734,
 67328268,108940186,176269708,285211220]