1,3

Table of n, a(n) for n=1..78.

Index entries for sequences related to lcm's

a(n) = A001222(A025555(n)). - Sean A. Irvine, Sep 06 2019

(PARI) a025555(n) = my(s=1); for(k=1, n, s=lcm(s, k*(k+1)/2)); s \\ after Edward Jiang in A025555

a(n) = bigomega(a025555(n)) \\ Felix FrÃ¶hlich, Sep 06 2019

Cf. A001222, A025555.

Sequence in context: A172104 A006161 A132351 * A338006 A005229 A091245

Adjacent sequences: A025553 A025554 A025555 * A025557 A025558 A025559

nonn

Clark Kimberling

More terms from Sean A. Irvine, Sep 06 2019

approved