A239423 - OEIS

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A239423 as a simple table

n	a(n)
1	72
2	1244
3	34728
4	811554
5	21127494
6	503941286
7	13584156020
8	331591613568
9	9007534804802
10	224281794567484
11	6091680378840082
12	153616126594282898
13	4160724940725286438
14	105844296459902589106
15	2855882931255045316668

[72,1244,34728,811554,21127494,503941286, 13584156020,331591613568,9007534804802, 224281794567484,6091680378840082, 153616126594282898,4160724940725286438, 105844296459902589106,2855882931255045316668]