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A149246 formatted as a simple table:

n a(n)
0 1
1 1
2 4
3 11
4 38
5 116
6 440
7 1453
8 5450
9 18714
10 71816
11 253494
12 972292
13 3492890
14 13529192
15 49328285
16 191161466
17 703792642
18 2742710728
19 10191899732
20 39738557836
21 148580923814
22 581445525832
23 2187826760962
24 8565364278692
25 32366865951050
26 127044352702056
27 482288980929490
28 1893726046847320

[1,1,4,11,38,116,440,1453,5450,18714,71816,253494,
 972292,3492890,13529192,49328285,191161466,
 703792642,2742710728,10191899732,39738557836,
 148580923814,581445525832,2187826760962,
 8565364278692,32366865951050,127044352702056,
 482288980929490,1893726046847320]

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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