n | a(n) |
---|---|
1 | 13 |
2 | 31 |
3 | 75 |
4 | 177 |
5 | 415 |
6 | 963 |
7 | 2227 |
8 | 5137 |
9 | 11855 |
10 | 27397 |
11 | 63483 |
12 | 147557 |
13 | 344175 |
14 | 805635 |
15 | 1892433 |
16 | 4460137 |
17 | 10544415 |
18 | 24999069 |
19 | 59419405 |
20 | 141550383 |
21 | 337872559 |
22 | 807871799 |
23 | 1934541399 |
24 | 4638401749 |
25 | 11133523165 |
26 | 26748531157 |
27 | 64314484855 |
[13,31,75,177,415,963,2227,5137,11855,27397,63483, 147557,344175,805635,1892433,4460137,10544415, 24999069,59419405,141550383,337872559,807871799, 1934541399,4638401749,11133523165,26748531157, 64314484855] |