A075182 - OEIS

%I #11 Aug 08 2024 07:01:45

%S 1,1,2,2,2,2,24,24,24,24,48,48,48,48,384,1152,1152,1152,2304,2304,

%T 11520,11520,46080,46080,414720,414720,829440,829440,829440,829440,

%U 13271040,13271040,13271040,39813120,79626240,79626240,79626240,79626240,318504960,318504960

%N Greatest common divisors of rows of triangle A075181 and of (unsigned) triangle A048594.

%F a(n) = gcd(A075181(n, m), m=1..n) = gcd(|A048594(n, m)|, m=1..n), n>=1.

%e Row n=3 of triangle A075181 is [6,6,2], hence a(3)=2.

%t a[n_] := GCD @@ Table[k! * Abs[StirlingS1[n, k]], {k, 1, n}]; Array[a, 40] (* _Amiram Eldar_, Aug 08 2024 *)

%Y Cf. A048594, A075181.

%K nonn,easy

%O 1,3

%A _Wolfdieter Lang_, Sep 19 2002

%E More terms from _Amiram Eldar_, Aug 08 2024