A191863 - OEIS

A191863

Second member of a pair of numbers occurring in the definition of 2-happy couples.

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

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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.

Initial Happy Factorization Data

PROG

(Haskell)

a191863 = snd . sqrtPair . a007970