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A264895 as a simple table

na(n)
00
11
2370
32835
410660
528645
663126
7121975
8214600
9351945
10546490
11812251
121164780
131621165
142200030
152921535
163807376
174880785
186166530
197690915
209481780
2111568501
2213981990
2316754695
2419920600
2523515225
2627575626
2732140395
2837249660
2942945085
3049269870

[0,1,370,2835,10660,28645,63126,121975,214600,
 351945,546490,812251,1164780,1621165,2200030,
 2921535,3807376,4880785,6166530,7690915,9481780,
 11568501,13981990,16754695,19920600,23515225,
 27575626,32140395,37249660,42945085,49269870]