A260982 - OEIS

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A260982 as a simple table

n	a(n)
1	1
2	13
3	3133
4	204525373
5	878416384666881853
6	16203922234330403022943873881213226813
7	5513909011300771210646237381366090850171917477741023928710521838825947516733

[1,13,3133,204525373,878416384666881853, 16203922234330403022943873881213226813, 55139090113007712106462373813660908501719174777410\ 23928710521838825947516733]