A191862 - OEIS

A191862

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

1, 1, 1, 3, 1, 2, 7, 1, 5, 1, 7, 1, 2, 1, 23, 1, 7, 99, 1, 4, 5, 43, 1, 1, 9, 51, 3, 1, 1, 1, 5, 47, 4005, 16, 277, 1, 11, 4, 193, 57, 191, 3, 1, 1, 2, 3383, 7, 21, 70, 20621, 1, 13, 5, 17, 20, 25, 51, 217, 1, 7, 9041, 5, 1, 416941, 1, 251, 1, 1, 15, 3, 5

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OFFSET

1,4

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)

a191862 = fst . sqrtPair . a007970

-- Function sqrtPair is defined in A007968.

-- Reinhard Zumkeller, Oct 11 2015