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A303342 as a simple table

na(n)
01
16
272
31008
410746
5130896
61569456
717371584
8192625128
92260005462
1024725148912
11270748885392
123027318848208
1332608207056528
14354309508944288
153902606972751168
1641393526342215994
17443390745816982944
184783687280410092984
1950532141192366275280

[1,6,72,1008,10746,130896,1569456,17371584,
 192625128,2260005462,24725148912,270748885392,
 3027318848208,32608207056528,354309508944288,
 3902606972751168,41393526342215994,
 443390745816982944,4783687280410092984,
 50532141192366275280]