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A191863
Second member of a pair of numbers occurring in the definition of 2-happy couples.
1
1, 1, 3, 1, 2, 1, 3, 5, 1, 1, 39, 3, 1, 1, 78, 7, 1, 13, 4, 1, 3, 5, 3, 9, 1, 11, 1, 1, 2, 5, 1, 477, 389, 3, 51, 11, 1, 5, 2175, 5, 33, 7, 2, 6, 1, 41571, 44, 5, 11, 3201, 13, 1, 11, 9, 3, 11, 37, 2999, 7, 1, 127539, 8, 1, 57003, 3, 17, 5, 15, 1, 1, 1, 17
OFFSET
1,3
COMMENTS
a(n) is odd, as is A191862(n).
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..99
J. H. Conway, On Happy Factorizations, J. Integer Sequences, Vol. 1, 1998, #1.
PROG
(Haskell)
a191863 = snd . sqrtPair . a007970
-- Function sqrtPair is defined in A007968.
-- Reinhard Zumkeller, Oct 11 2015
CROSSREFS
Sequence in context: A178830 A029329 A287872 * A166866 A370220 A177343
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jun 18 2011
EXTENSIONS
Wrong comment and wrong formula removed (thanks to Wolfdieter Lang, who pointed this out) by Reinhard Zumkeller, Oct 11 2015
STATUS
approved