n | a(n) |
---|---|
1 | 5 |
2 | 10 |
3 | 40 |
4 | 70 |
5 | 250 |
6 | 430 |
7 | 1510 |
8 | 2590 |
9 | 9070 |
10 | 15550 |
11 | 54430 |
12 | 93310 |
13 | 326590 |
14 | 559870 |
15 | 1959550 |
16 | 3359230 |
17 | 11757310 |
18 | 20155390 |
19 | 70543870 |
20 | 120932350 |
21 | 423263230 |
22 | 725594110 |
23 | 2539579390 |
24 | 4353564670 |
25 | 15237476350 |
26 | 26121388030 |
27 | 91424858110 |
28 | 156728328190 |
29 | 548549148670 |
[5,10,40,70,250,430,1510,2590,9070,15550,54430, 93310,326590,559870,1959550,3359230,11757310, 20155390,70543870,120932350,423263230,725594110, 2539579390,4353564670,15237476350,26121388030, 91424858110,156728328190,548549148670] |