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A150757 formatted as a simple table:

n a(n)
0 1
1 2
2 8
3 29
4 132
5 558
6 2640
7 11875
8 57223
9 265840
10 1294971
11 6133682
12 30085606
13 144312174
14 711154466
15 3441237378
16 17013314950
17 82851670157
18 410577191021
19 2008989349008
20 9973036413246
21 48978069657381
22 243459351386625
23 1199080904886102
24 5966497845762630
25 29453453615540568
26 146676039864165129

[1,2,8,29,132,558,2640,11875,57223,265840,1294971,
 6133682,30085606,144312174,711154466,3441237378,
 17013314950,82851670157,410577191021,
 2008989349008,9973036413246,48978069657381,
 243459351386625,1199080904886102,5966497845762630,
 29453453615540568,146676039864165129]

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.


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