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A327724
Product of A003059 and A071797.
0
1, 2, 4, 6, 3, 6, 9, 12, 15, 4, 8, 12, 16, 20, 24, 28, 5, 10, 15, 20, 25, 30, 35, 40, 45, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 9, 18, 27, 36, 45, 54
OFFSET
1,2
PROG
(PARI) a(n) = {(1+sqrtint(n-1))*(n-sqrtint(n-1)^2)} \\ Andrew Howroyd, Sep 23 2019
CROSSREFS
Sequence in context: A161184 A349543 A140645 * A117532 A287662 A278376
KEYWORD
nonn
AUTHOR
Todor Szimeonov, Sep 23 2019
STATUS
approved