A274958 - OEIS

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A274958 as a simple table

n	a(n)
1	48
2	1944
3	29370
4	536406
5	9902040
6	183551766
7	3403449396
8	63272648886
9	1177544081274
10	21902996126304
11	407411914385880
12	7579730569124166
13	141023976164929368
14	2623681154691815424
15	48812099869891553724

[48,1944,29370,536406,9902040,183551766, 3403449396,63272648886,1177544081274, 21902996126304,407411914385880,7579730569124166, 141023976164929368,2623681154691815424, 48812099869891553724]