23770

Appears in sequences

• Numbers that are divisible by 10 and are differences between two cubes in at least one way.at n=31A038854
• Indices of primes in sequence defined by A(0) = 83, A(n) = 10*A(n-1) + 23 for n > 0.at n=13A101071
• Triangle read by rows: A001263 * A128064 * A000012 as infinite lower triangular matrices.at n=48A136536
• Number of binary strings of length n with equal numbers of 0000 and 0010 substrings.at n=16A164148
• A triangle sequence of polynomial coefficients:p(x,n)=Sum[Eulerian[n+1, k]*(-x)^k*Sum[StirlingS2[n, m]*x^m, {m, 0, n - k}], {k, 0, n}].at n=25A174860
• Number of Proth primes < 2^n.at n=34A214120
• Number of partitions p of n such that (number of numbers in p having multiplicity > 1) = number of 1s in p.at n=49A241090
• Number of partitions p of n such that the number of parts is not a part and max(p) - min(p) is a part.at n=48A241383
• Regular triangle read rows: T(n,k) = number of non-isomorphic multiset partitions of size n and length k.at n=60A317533
• Number of vertices formed inside a triangle with edge length 1 by the straight line segments mutually connecting all vertices and points that divide the sides into segments with lengths equal to the Farey series of order n = A006842(n,k)/A006843(n,k), k = 1..A005728(n).at n=5A358949