Planting distances

[Dak]

I'd love some advice on planting my squash this year. I have a 20 x 4 foot bed and I'm thinking of planting Papavero, Terromoto, Zucca Butternut, & Oregon Homestead.

If I space them at 5 feet apart, is it still recommended to plant in groups, like 3 or 4 plants per hill? Is 5 feet a reasonable distance or could it be less? If I plant just one plant per 5 foot spacing, should I plant in the middle of the row, or offset?

Thanks!