A210967 - OEIS

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A210967

Prime triples (p, q, r), p<=q<=r, such that p + q + r = 2*n + 1 and p*q*r is the minimum product.

2, 2, 3, 2, 2, 5, 2, 2, 7, 3, 3, 7, 2, 2, 11, 2, 2, 13, 3, 3, 13, 2, 2, 17, 2, 2, 19, 3, 3, 19, 2, 2, 23, 3, 3, 23, 3, 5, 23, 2, 2, 29, 2, 2, 31, 3, 3, 31, 3, 5, 31, 2, 2, 37, 3, 3, 37, 2, 2, 41, 2, 2, 43, 3, 3, 43, 2, 2, 47, 3, 3, 47, 3, 5, 47, 2, 2, 53, 3, 3, 53, 3, 5, 53, 2, 2, 59, 2, 2, 61, 3, 3, 61, 3, 5, 61, 2, 2, 67, 3, 3, 67, 2, 2, 71, 2, 2, 73, 3, 3, 73

(list; graph; refs; listen; history; text; internal format)

OFFSET

3,1

LINKS

Table of n, a(n) for n=3..113.

EXAMPLE

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p+q+r

Triplets = A210968

n (p, q, r) 2*n+1 p*q*r

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3 (2, 2, 3) 7 12