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Michel Lagneau, <a href="/A219252/b219252_1.txt">Table of n, a(n) for n = 1..10000</a>
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Conjecture : except m = 77, all odd number > 9 are of the form m = p + 4*q where p and q are prime numbers.
proposed
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proposed
Michel Lagneau, <a href="/A219252/b219252_1.txt">Table of n, a(n) for n = 51..10000</a>
proposed
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proposed
Conjecture : except m = 77, all even odd number > 9 are of the form m = p + 4*q where p and q are prime numbers.
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0, 0, 0, 0, 2, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 5, 3, 2, 2, 3, 3, 2, 7, 2, 2, 3, 2, 5, 3, 2, 5, 3, 2, 2, 3, 3, 2, 0, 2, 2, 3, 3, 2, 7, 2, 5, 3, 2, 5, 3, 5, 2, 7, 2, 2, 3, 2, 2, 3, 2, 5, 3, 5, 5, 7, 5, 2, 7, 2, 7, 3, 2, 2, 3, 3, 11, 7, 2, 2, 3, 3, 2, 7, 3, 2, 19, 2, 5, 3, 2
5,1
1,5
proposed
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