A295038 - OEIS

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A295038 as a simple table

n	a(n)
1	21
2	876
3	19956
4	528282
5	13706771
6	355281224
7	9248214732
8	240292442848
9	6243986963713
10	162252303626409
11	4216381439247094
12	109570922468132003
13	2847344541437365138
14	73992200911927723171
15	1922796991924326509127

[21,876,19956,528282,13706771,355281224, 9248214732,240292442848,6243986963713, 162252303626409,4216381439247094, 109570922468132003,2847344541437365138, 73992200911927723171,1922796991924326509127]