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A027970 formatted as a simple table:

n a(n)
4 1
5 4
6 11
7 29
8 76
9 196
10 487
11 1148
12 2552
13 5353
14 10636
15 20120
16 36425
17 63415
18 106630
19 173821
20 275603
21 426242
22 644593
23 955207
24 1389626
25 1987886
26 2800249
27 3889186
28 5331634
29 7221551
30 9672794
31 12822346
32 16833919
33 21901961
34 28256096

[1,4,11,29,76,196,487,1148,2552,5353,10636,20120,
 36425,63415,106630,173821,275603,426242,644593,
 955207,1389626,1987886,2800249,3889186,5331634,
 7221551,9672794,12822346,16833919,21901961,
 28256096]

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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