n | a(n) |
---|---|
1 | 4 |
2 | 50 |
3 | 258 |
4 | 954 |
5 | 3064 |
6 | 9075 |
7 | 27120 |
8 | 73312 |
9 | 187700 |
10 | 454607 |
11 | 1054023 |
12 | 2348091 |
13 | 5040527 |
14 | 10456925 |
15 | 21019462 |
16 | 41033776 |
17 | 77965751 |
18 | 144468320 |
19 | 261540590 |
20 | 463367238 |
21 | 804614463 |
22 | 1371267840 |
23 | 2296511220 |
24 | 3783694051 |
25 | 6139153725 |
[4,50,258,954,3064,9075,27120,73312,187700,454607, 1054023,2348091,5040527,10456925,21019462, 41033776,77965751,144468320,261540590,463367238, 804614463,1371267840,2296511220,3783694051, 6139153725] |