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A149248 formatted as a simple table:

n a(n)
0 1
1 1
2 4
3 11
4 38
5 127
6 469
7 1677
8 6378
9 24095
10 93609
11 362445
12 1436332
13 5676421
14 22781348
15 91416871
16 370922058
17 1504651077
18 6159395169
19 25221691069
20 103977918900
21 428932959075
22 1779227261594
23 7385144690729
24 30792699917314
25 128496500238255
26 538174185677349
27 2255895860083435
28 9485551742409292

[1,1,4,11,38,127,469,1677,6378,24095,93609,362445,
 1436332,5676421,22781348,91416871,370922058,
 1504651077,6159395169,25221691069,103977918900,
 428932959075,1779227261594,7385144690729,
 30792699917314,128496500238255,538174185677349,
 2255895860083435,9485551742409292]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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