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A055795 as a simple table

na(n)
10
21
33
47
515
630
756
898
9162
10255
11385
12561
13793
141092
151470
161940
172516
183213
194047
205035
216195
227546
239108
2410902
2512950
2615275
2717901
2820853
2924157
3027840
3131930
3236456
3341448
3446937
3552955
3659535
3766711
3874518
3982992
4092170
41102090
42112791
43124313
44136697

[0,1,3,7,15,30,56,98,162,255,385,561,793,1092,
 1470,1940,2516,3213,4047,5035,6195,7546,9108,
 10902,12950,15275,17901,20853,24157,27840,31930,
 36456,41448,46937,52955,59535,66711,74518,82992,
 92170,102090,112791,124313,136697]