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A130511
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ABC conjecture: values of a in the list of "abc-hits".
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5
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1, 5, 1, 1, 1, 32, 4, 3, 1, 1, 2, 7, 13, 81, 1, 100, 32, 5, 169, 1, 27, 1, 49, 81, 1, 1, 25, 104, 200, 1, 343, 1, 5, 1, 8, 81, 243, 640, 256, 81, 23, 25, 243, 9, 11, 139, 512, 10, 81, 1, 125, 1, 25, 192, 1024, 99, 625, 1, 875, 53, 128, 11, 1024, 25, 459, 128, 648, 1, 1, 512, 7, 1
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OFFSET
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1,2
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LINKS
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PROG
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(Python)
from itertools import count, islice
from math import prod, gcd
from sympy import primefactors
def A130511_gen(): # generator of terms
for c in count(1):
pc = set(primefactors(c))
for a in range(1, (c>>1)+1):
b = c-a
if gcd(a, b)==1 and c>prod(set(primefactors(a))|set(primefactors(b))|pc):
yield a
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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