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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 275 |
| 3 | 3132 |
| 4 | 54081 |
| 5 | 879613 |
| 6 | 14115912 |
| 7 | 228181579 |
| 8 | 3665485997 |
| 9 | 59089675296 |
| 10 | 953116106453 |
| 11 | 15359172282512 |
| 12 | 247519894627506 |
| 13 | 3989312579467033 |
| 14 | 64295755893155813 |
| 15 | 1036249111850136058 |
| 16 | 16701156795097887219 |
[13,275,3132,54081,879613,14115912,228181579, 3665485997,59089675296,953116106453, 15359172282512,247519894627506,3989312579467033, 64295755893155813,1036249111850136058, 16701156795097887219] |