44574

Appears in sequences

• High-temperature series in w = tanh(J/kT) for ferromagnetic susceptibility for the spin-1/2 Ising model on hexagonal lattice.at n=7A002920
• (Terms in A029613)/2.at n=41A051435
• Squarefree part of n!: n! divided by its largest square divisor.at n=27A055204
• Squarefree part of the n-th central binomial coefficient.at n=27A056058
• Squarefree part of C(2n,n), the central binomial numbers: the smallest number such that a(n)*C(2n,n) is a square.at n=14A069113
• a(n) is the smallest integer of the form a*b*c.../p*q*r..., where the numerator and the denominator contain n numbers each and a,b,c,...p,q,r... are all the integers from 1 to 2n.at n=13A085057
• a(n) = A000217(A000217(n))-n^2.at n=24A086602
• Sixth column (m=5) of (1,6)-Pascal triangle A096956.at n=16A096959
• Riordan array (2c(-x)-1, xc(-x)^3), c(x) the g.f. of A000108.at n=48A159971
• n!/pp, where pp is the largest perfect power (A001597) which divides n!.at n=28A251753
• Number of 5-cycles in the n-triangular honeycomb obtuse knight graph.at n=38A290391
• a(n) = k if the first appearance of n in A077618 is at index k, or 0 if k does not appear in A077618.at n=26A291056
• a(n) = (24*n)!*(7*n)!*(4*n)!/((14*n)!*(12*n)!*(8*n)!*n!).at n=1A295480
• Square array read by upward antidiagonals in which T(w,p) is the smallest number k whose symmetric representation of sigma(k) consists of p parts with maximum width w occurring in at least one of its p parts.at n=31A348171
• a(n) is the least term in the n-th row of A360298.at n=27A360300
• For any n > 0, let b_n(n+1) = 1, and for k = 1..n, if k divides b_n(k+1) then b_n(k) = b_n(k+1) / k otherwise b_n(k) = b_n(k+1) * k; a(n) = b_n(1).at n=27A374317