n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 5 |
5 | 5 |
6 | 15 |
7 | 35 |
8 | 55 |
9 | 135 |
10 | 255 |
11 | 495 |
12 | 1055 |
13 | 2015 |
14 | 4095 |
15 | 8255 |
16 | 16255 |
17 | 32895 |
18 | 65535 |
19 | 130815 |
20 | 262655 |
21 | 523775 |
22 | 1048575 |
23 | 2098175 |
24 | 4192255 |
25 | 8390655 |
26 | 16777215 |
27 | 33550335 |
28 | 67117055 |
29 | 134209535 |
30 | 268435455 |
31 | 536887295 |
32 | 1073709055 |
33 | 2147516415 |
34 | 4294967295 |
35 | 8589869055 |
36 | 17180000255 |
[0,0,0,5,5,15,35,55,135,255,495,1055,2015,4095, 8255,16255,32895,65535,130815,262655,523775, 1048575,2098175,4192255,8390655,16777215,33550335, 67117055,134209535,268435455,536887295,1073709055, 2147516415,4294967295,8589869055,17180000255] |