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A139034
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Prime numbers appearing in A139033.
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2
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5, 41, 617, 1913, 3677, 5981, 10337, 16421, 32297, 51341, 72077, 98321, 142421, 212117, 288293, 371237, 457673, 570569, 722669, 899069, 1112513, 1360517, 1614533, 1874633, 2159789, 2451389, 2776289, 3158213, 3555113, 3967277, 4402877, 4878977, 5371781, 5925317
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OFFSET
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1,1
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LINKS
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FORMULA
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MAPLE
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s:= proc(n) option remember; `if`(n<1, 0, b(n)^2+s(n-1)) end:
b:= proc(n) option remember; local k, m;
k:= s(n-1); for m from 1+b(n-1)
while not isprime(k+m^2) do od; m
end: b(1):=1:
a:= n-> s(n+1):
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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