| Giver | Post | Date |
| hana_06 | Re: In the arithmetic sequence t1, t2, t3, ..., tn, t1=23 and tn | 15-Sep-2023 |
| robb83 | Re: In the arithmetic sequence t1, t2, t3, ..., tn, t1=23 and tn | 13-Dec-2017 |
| rmatthew | Re: In the arithmetic sequence t1, t2, t3, ..., tn, t1=23 and tn | 10-Dec-2017 |