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A211344 as a simple table

n a(n)
0 1
1 3
2 5
3 15
4 51
5 85
6 255
7 3855
8 13107
9 21845
10 65535
11 16711935
12 252645135
13 858993459
14 1431655765
15 4294967295
16 281470681808895
17 71777214294589695
18 1085102592571150095
19 3689348814741910323
20 6148914691236517205

[1,3,5,15,51,85,255,3855,13107,21845,65535,
 16711935,252645135,858993459,1431655765,
 4294967295,281470681808895,71777214294589695,
 1085102592571150095,3689348814741910323,
 6148914691236517205]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)