n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 21 |
4 | 132 |
5 | 840 |
6 | 6798 |
7 | 26187 |
8 | 982794 |
9 | -23411010 |
10 | 1229958800 |
11 | -63402693620 |
12 | 3727765284702 |
13 | -241049598495378 |
14 | 17055417754898346 |
15 | -1310070866036785677 |
16 | 108572840286328367574 |
17 | -9656468474317765916970 |
18 | 917437511140569561151848 |
19 | -92733586081750860360411954 |
20 | 9936829948115042380890921976 |
21 | -1125196473407637775842431681496 |
22 | 134258639558360961220987962351588 |
[1,1,4,21,132,840,6798,26187,982794,-23411010, 1229958800,-63402693620,3727765284702, -241049598495378,17055417754898346, -1310070866036785677,108572840286328367574, -9656468474317765916970,917437511140569561151848, -92733586081750860360411954, 9936829948115042380890921976, -1125196473407637775842431681496, 134258639558360961220987962351588] |