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A287101 as a simple table

n a(n)
0 1
1 3
2 6
3 15
4 24
5 63
6 120
7 255
8 480
9 1023
10 1920
11 4095
12 7680
13 16383
14 32640
15 65535
16 114176
17 262143
18 407552
19 1048575
20 1769472
21 4194303
22 7077888
23 16777215
24 28409856
25 67108863
26 101056512
27 268435455
28 504889344
29 1073741823
30 2045214720
31 4294967295
32 7643987968

[1,3,6,15,24,63,120,255,480,1023,1920,4095,7680,
 16383,32640,65535,114176,262143,407552,1048575,
 1769472,4194303,7077888,16777215,28409856,
 67108863,101056512,268435455,504889344,1073741823,
 2045214720,4294967295,7643987968]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)