A few TM bases

In case it might be relevant, here are TM bases for the commas of
494 (11 and 13 limits) and 612 (11 limit.)

494 11-limit
[131072/130977, 234375/234256, 3025/3024, 4375/4374]

494 13-limit
[31250/31213, 1716/1715, 2080/2079, 3025/3024, 4096/4095]

612 11-limit
[2401/2400, 3025/3024, 4375/4374, 184549376/184528125]