23255

Appears in sequences

• Numbers k such that k*(k+4) is a palindrome.at n=19A028555
• Number of different sets ("cut sets") of triangles a regular (n+2)-gon can be dissected into; two triangulations of an (n+2)-gon are equal if all numbers of congruent triangles coincide.at n=18A033961
• Number of endofunctions of [n] such that some element is fixed, but 1 is not fixed.at n=5A066275
• Expansion of chi(x) / phi(x^2) in powers of x where phi(), chi() are Ramanujan theta functions.at n=44A085261
• G.f.: A(x) = Product_{n>=1} 1/(1 - 5^n*x^n)^(5/5^n).at n=6A110155
• Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 3 array.at n=26A219699
• Floor of sums of the cubes of the non-integer square roots of n, as partitioned by the integer roots: floor(Sum_{j=n^2+1..(n+1)^2-1} j^(3/2)).at n=10A247112
• a(n) = number of partitions p of n such that the least multiplicity of the parts of p is not a part of p.at n=48A365615