591360

Appears in sequences

• Magic products of 5 X 5 multiplicative magic squares.at n=23A111031
• Number of 13 X 13 arrays of squares of integers, symmetric about the diagonal and under 90-degree rotation, with all rows summing to n.at n=29A156414
• Number of 5 X n 0..1 arrays avoiding 0 0 1 and 1 0 1 horizontally and 0 1 0 and 1 0 1 vertically.at n=13A207256
• Let a(n) be the least k such that in the prime power factorization of k! the exponents of primes p_1, ...,p_n are even, while the exponent of p_(n+1) is odd.at n=18A240537
• a(n) is the smallest k such that in the prime power factorization of k! at least the first n positive exponents are even.at n=18A240620
• T(n, k) = (3^(-k)*n!*2^(n - 3*k))/(k!*(n - 3*k)!), for n >= 0 and 0 <= k <= floor(n/3). Triangle read by rows.at n=28A344915
• Maximum difficulty level (see A361424 for the definition) for tiling an n X 2 rectangle with a set of integer-sided rectangles, rounded down to the nearest integer.at n=21A361426
• The number of stones-and-bones tilings of the (3n+1,3n+2)-benzel when one orientation of bone is forbidden.at n=2A364482
• G.f. satisfies A(x) = 1 + x + 2*x^3*A(x)^3.at n=17A367072
• Positive integers of the form k^2 - 1 that are the product of two other distinct positive integers of the form k^2 - 1.at n=36A372497
• Numbers that set records in A376567.at n=27A378630
• Numbers that set records in A378181.at n=25A378632
• Numbers that set records in A113901.at n=27A380146