n | a(n) |
---|---|
0 | 1 |
1 | 19 |
2 | 181 |
3 | 1159 |
4 | 5641 |
5 | 22363 |
6 | 75517 |
7 | 224143 |
8 | 598417 |
9 | 1462563 |
10 | 3317445 |
11 | 7059735 |
12 | 14218905 |
13 | 27298155 |
14 | 50250765 |
15 | 89129247 |
16 | 152951073 |
17 | 254831667 |
18 | 413442773 |
19 | 654862247 |
20 | 1014889769 |
21 | 1541911931 |
22 | 2300409629 |
23 | 3375210671 |
24 | 4876601009 |
25 | 6946419011 |
26 | 9765268709 |
[1,19,181,1159,5641,22363,75517,224143,598417, 1462563,3317445,7059735,14218905,27298155, 50250765,89129247,152951073,254831667,413442773, 654862247,1014889769,1541911931,2300409629, 3375210671,4876601009,6946419011,9765268709] |