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A030836 as a simple table

n a(n)
1 1
2 2
3 7
4 30
5 150
6 903
7 6326
8 50608
9 455476
10 4554768
11 50102455
12 601229463
13 7815983029
14 109423762408
15 1641356436134
16 26261702978145
17 446448950628474
18 8036081111312533
19 152685541114938127
20 3053710822298762550

[1,2,7,30,150,903,6326,50608,455476,4554768,
 50102455,601229463,7815983029,109423762408,
 1641356436134,26261702978145,446448950628474,
 8036081111312533,152685541114938127,
 3053710822298762550]

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Last modified December 8 19:05 EST 2016. Contains 278948 sequences.