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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 24 |
| 4 | 66 |
| 5 | 155 |
| 6 | 321 |
| 7 | 602 |
| 8 | 1044 |
| 9 | 1701 |
| 10 | 2635 |
| 11 | 3916 |
| 12 | 5622 |
| 13 | 7839 |
| 14 | 10661 |
| 15 | 14190 |
| 16 | 18536 |
| 17 | 23817 |
| 18 | 30159 |
| 19 | 37696 |
| 20 | 46570 |
| 21 | 56931 |
| 22 | 68937 |
| 23 | 82754 |
| 24 | 98556 |
| 25 | 116525 |
| 26 | 136851 |
| 27 | 159732 |
| 28 | 185374 |
| 29 | 213991 |
| 30 | 245805 |
| 31 | 281046 |
| 32 | 319952 |
| 33 | 362769 |
| 34 | 409751 |
| 35 | 461160 |
| 36 | 517266 |
| 37 | 578347 |
| 38 | 644689 |
[1,7,24,66,155,321,602,1044,1701,2635,3916,5622, 7839,10661,14190,18536,23817,30159,37696,46570, 56931,68937,82754,98556,116525,136851,159732, 185374,213991,245805,281046,319952,362769,409751, 461160,517266,578347,644689] |