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A320950 as a simple table

n a(n)
0 1
1 2
2 3
3 5
4 20
5 81
6 272
7 1144
8 6147
9 30859
10 158137
11 955988
12 5995439
13 37307475
14 252176301
15 1813873656
16 13149151909
17 99412177075
18 793516947530
19 6470733413532
20 54217400538306
21 473499984230701
22 4245890615280401
23 38948094201082823
24 368815668052736968
25 3585473523132486254
26 35608100771085923165
27 362850695679003347638
28 3788143752503214124895

[1,2,3,5,20,81,272,1144,6147,30859,158137,955988,
 5995439,37307475,252176301,1813873656,13149151909,
 99412177075,793516947530,6470733413532,
 54217400538306,473499984230701,4245890615280401,
 38948094201082823,368815668052736968,
 3585473523132486254,35608100771085923165,
 362850695679003347638,3788143752503214124895]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)