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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 36 |
| 3 | 684 |
| 4 | 15779 |
| 5 | 408222 |
| 6 | 11444292 |
| 7 | 340780382 |
| 8 | 10635858679 |
| 9 | 344674481333 |
| 10 | 11518916935288 |
| 11 | 394956511554556 |
| 12 | 13839075880034056 |
| 13 | 494013661434533634 |
| 14 | 17921279299283914328 |
| 15 | 659361786079631903704 |
| 16 | 24563166523294240335463 |
[3,36,684,15779,408222,11444292,340780382, 10635858679,344674481333,11518916935288, 394956511554556,13839075880034056, 494013661434533634,17921279299283914328, 659361786079631903704,24563166523294240335463] |