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A134857
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Numbers that can be written as (a^2-1)(b^2-1) in four or more distinct ways.
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3
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241920, 1048320, 10200960, 25724160, 37255680, 93139200, 123963840, 245044800, 588107520, 819786240, 1407893760, 1871251200, 3758169600, 5886558720, 8553283200, 10783342080, 13470367680, 19769460480, 30791819520, 40446806400
(list; graph; refs; listen; history; internal format)
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