27952

Appears in sequences

• 1000-gonal numbers: a(n) = n*(499*n - 498).at n=8A195163
• Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array.at n=29A219349
• Number of partitions p of n such that (maximal multiplicity of the parts of p) >= (maximal part of p).at n=48A240313
• Numbers n>1 such that the difference between log(n) and its best rational approximation as x/y with y<=n produces a new minimum of abs(log(n)-x/y). x/y is provided as A306976/A306977.at n=20A306975
• Partial sums of the Dedekind psi_2(k) function, for 1 <= k <= n.at n=41A321973
• a(n) = numerator of Sum_{k=2..A335138(n)} abs(A309229(n, k))/k.at n=19A335416