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A139305 as a simple table

n a(n)
1 0
2 255
3 72057594037927935
4 452312848583266388373324160190187140051835877600158453279131187530910662655

[0,255,72057594037927935,
 45231284858326638837332416019018714005183587760015\
 8453279131187530910662655]

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Last modified February 23 05:58 EST 2019. Contains 320411 sequences. (Running on oeis4.)