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A293156 as a simple table

na(n)
115
236
399
4292
5876
62628
77884
823652
970956
10212868
11638604
121915812
135747436
1417242308
1551726924
16155180772
17465542316
181396626948
194189880844
2012569642532
2137708927596
22113126782788
23339380348364
241018141045092
253054423135276
269163269405828
2727489808217484

[15,36,99,292,876,2628,7884,23652,70956,212868,
 638604,1915812,5747436,17242308,51726924,
 155180772,465542316,1396626948,4189880844,
 12569642532,37708927596,113126782788,339380348364,
 1018141045092,3054423135276,9163269405828,
 27489808217484]