n | a(n) |
---|---|
1 | 3 |
2 | 14 |
3 | 57 |
4 | 228 |
5 | 915 |
6 | 3662 |
7 | 14649 |
8 | 58596 |
9 | 234387 |
10 | 937550 |
11 | 3750201 |
12 | 15000804 |
13 | 60003219 |
14 | 240012878 |
15 | 960051513 |
16 | 3840206052 |
17 | 15360824211 |
18 | 61443296846 |
19 | 245773187385 |
20 | 983092749540 |
21 | 3932370998163 |
22 | 15729483992654 |
23 | 62917935970617 |
24 | 251671743882468 |
25 | 1006686975529875 |
26 | 4026747902119502 |
[3,14,57,228,915,3662,14649,58596,234387,937550, 3750201,15000804,60003219,240012878,960051513, 3840206052,15360824211,61443296846,245773187385, 983092749540,3932370998163,15729483992654, 62917935970617,251671743882468,1006686975529875, 4026747902119502] |