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A153237 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 9
5 27
6 63
7 126
8 252
9 504
10 1017
11 2043
12 4095
13 8190
14 16380
15 32760
16 65529
17 131067
18 262143
19 524286
20 1048572
21 2097144
22 4194297
23 8388603
24 16777215
25 33554430
26 67108860
27 134217720
28 268435449
29 536870907
30 1073741823
31 2147483646

[0,0,0,0,9,27,63,126,252,504,1017,2043,4095,8190,
 16380,32760,65529,131067,262143,524286,1048572,
 2097144,4194297,8388603,16777215,33554430,
 67108860,134217720,268435449,536870907,1073741823,
 2147483646]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)