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A024050 formatted as a simple table:

n a(n)
0 1
1 4
2 23
3 122
4 621
5 3120
6 15619
7 78118
8 390617
9 1953116
10 9765615
11 48828114
12 244140613
13 1220703112
14 6103515611
15 30517578110
16 152587890609
17 762939453108
18 3814697265607
19 19073486328106
20 95367431640605

[1,4,23,122,621,3120,15619,78118,390617,1953116,
 9765615,48828114,244140613,1220703112,6103515611,
 30517578110,152587890609,762939453108,
 3814697265607,19073486328106,95367431640605]

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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