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A053560 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 1
5 6
6 14
7 36
8 93
9 252
10 661
11 1782
12 4893
13 13608
14 37890
15 106142
16 298755
17 844182
18 2391732
19 6797196
20 19371684
21 55348596
22 158491993
23 454795398
24 1307534319
25 3765720066
26 10862647236
27 31381000560
28 90780846494
29 262951692390

[0,0,0,1,6,14,36,93,252,661,1782,4893,13608,37890,
 106142,298755,844182,2391732,6797196,19371684,
 55348596,158491993,454795398,1307534319,
 3765720066,10862647236,31381000560,90780846494,
 262951692390]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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