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A277638型作为一个简单的表

n个a(n)
01
14
237
520
48803
5165292
63320023
769943804
81526981575
934271322316
10786371041603
1118372739163632
12435772652437381
1310468369504009060
14254238148448959729
156233226769739934964
16154092763036678601551
173837301178450916902428

[1,4,37,520,8803,165292,3320023,69943804,1526981575,34271322316,786371041603,18372739163632,435772652437381,10468369504009060,254238148448959729,6233226769739934964,154092763036678601551,3837301178450916902428]