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A076767 as a simple table

na(n)
00
11
215
3105
4465
51540
64186
79870
820910
940755
1074305
11128271
12211575
13335790
14515620
15769420
161119756
171594005
182224995
193051685
204119885
215483016
227202910
239350650
2412007450
2515265575
2619229301
2724015915
2829756755
2936598290

[0,1,15,105,465,1540,4186,9870,20910,40755,74305,
 128271,211575,335790,515620,769420,1119756,
 1594005,2224995,3051685,4119885,5483016,7202910,
 9350650,12007450,15265575,19229301,24015915,
 29756755,36598290]