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A060893 formatted as a simple table:

n a(n)
0 1
1 1
2 241
3 6481
4 65281
5 390001
6 1678321
7 5762401
8 16773121
9 43040161
10 99990001
11 214344241
12 429960961
13 815702161
14 1475750641
15 2562840001
16 4294901761
17 6975673921
18 11019855601
19 16983432721
20 25599840001
21 37822664881
22 54875639281

[1,1,241,6481,65281,390001,1678321,5762401,
 16773121,43040161,99990001,214344241,429960961,
 815702161,1475750641,2562840001,4294901761,
 6975673921,11019855601,16983432721,25599840001,
 37822664881,54875639281]

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.


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