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A268738 as a simple table

n a(n)
1 20
2 420
3 7831
4 128232
5 1971414
6 29134076
7 418632185
8 5894815754
9 81718671716
10 1119014223138
11 15171181272721
12 203998929406004
13 2724149465085496
14 36163754541884778
15 477648079847735215
16 6280858615510607492

[20,420,7831,128232,1971414,29134076,418632185,
 5894815754,81718671716,1119014223138,
 15171181272721,203998929406004,2724149465085496,
 36163754541884778,477648079847735215,
 6280858615510607492]

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)