A078368 - OEIS

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A078368 as a simple table

n	a(n)
0	1
1	19
2	360
3	6821
4	129239
5	2448720
6	46396441
7	879083659
8	16656193080
9	315588584861
10	5979526919279
11	113295422881440
12	2146633507828081
13	40672741225852099
14	770635449783361800
15	14601400804658022101

[1,19,360,6821,129239,2448720,46396441,879083659, 16656193080,315588584861,5979526919279, 113295422881440,2146633507828081, 40672741225852099,770635449783361800, 14601400804658022101]