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A001834 formatted as a simple table:

n a(n)
0 1
1 5
2 19
3 71
4 265
5 989
6 3691
7 13775
8 51409
9 191861
10 716035
11 2672279
12 9973081
13 37220045
14 138907099
15 518408351
16 1934726305
17 7220496869
18 26947261171
19 100568547815
20 375326930089
21 1400739172541
22 5227629760075
23 19509779867759
24 72811489710961
25 271736178976085

[1,5,19,71,265,989,3691,13775,51409,191861,716035,
 2672279,9973081,37220045,138907099,518408351,
 1934726305,7220496869,26947261171,100568547815,
 375326930089,1400739172541,5227629760075,
 19509779867759,72811489710961,271736178976085]

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


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