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(another Prime Pages' Curiosity)
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+ Largest known prime partial sum of number of self-avoiding walks on square lattice, summing all such walks from the definitional minimum 4 through 19 steps: 0 + 0 + 0 + 1 + 0 + 0 + 2 + 7 + 12 + 14 + 36 + 95 + 226 + 501 + 1056 + 2377 = 4327 is prime. [Post]

(There is one curio for this number that has not yet been approved by an editor.)




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