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A075182
Greatest common divisors of rows of triangle A075181 and of (unsigned) triangle A048594.
1
1, 1, 2, 2, 2, 2, 24, 24, 24, 24, 48, 48, 48, 48, 384, 1152, 1152, 1152, 2304, 2304, 11520, 11520, 46080, 46080, 414720, 414720, 829440, 829440, 829440, 829440, 13271040, 13271040, 13271040, 39813120, 79626240, 79626240, 79626240, 79626240, 318504960, 318504960
OFFSET
1,3
FORMULA
a(n) = gcd(A075181(n, m), m=1..n) = gcd(|A048594(n, m)|, m=1..n), n>=1.
EXAMPLE
Row n=3 of triangle A075181 is [6,6,2], hence a(3)=2.
MATHEMATICA
a[n_] := GCD @@ Table[k! * Abs[StirlingS1[n, k]], {k, 1, n}]; Array[a, 40] (* Amiram Eldar, Aug 08 2024 *)
CROSSREFS
Sequence in context: A249779 A167394 A029627 * A292023 A286851 A320017
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Sep 19 2002
EXTENSIONS
More terms from Amiram Eldar, Aug 08 2024
STATUS
approved