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 A236682 Values of a for triples (a,b,c) of positive integers such that 1/a + 1/b + 1/c = 1/2 and a <= b <= c, listed with multiplicity. 3
 3, 3, 3, 3, 3, 4, 4, 4, 5, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE The solutions [a,b,c] of 1/a + 1/b + 1/c = 1/2 and a <= b <= c, listed in lexicographical order, are: {[3, 7, 42], [3, 8, 24], [3, 9, 18], [3, 10, 15], [3, 12, 12], [4, 5, 20], [4, 6, 12], [4, 8, 8], [5, 5, 10], [6, 6, 6]}. PROG (PARI) forvec(v=vector(3, i, [3, 42]), sum(j=1, 3, 1/v[j])==1/2 && print1(v[1]", "), 1) CROSSREFS Cf. A236681, A236683, A236684. Sequence in context: A050499 A304431 A147752 * A114227 A187469 A112593 Adjacent sequences:  A236679 A236680 A236681 * A236683 A236684 A236685 KEYWORD nonn,fini,full AUTHOR M. F. Hasler, Jan 29 2014 STATUS approved

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Last modified June 24 04:38 EDT 2019. Contains 324318 sequences. (Running on oeis4.)