56610

Appears in sequences

• Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^10 in powers of x.at n=31A001488
• a(n) = floor( n*(n-1)*(n-2)*(n-3)/28 ).at n=37A011938
• The binary encoding (as a rooted planar tree) of each rooted planar binary tree. See A057123 for illustration.at n=18A057122
• Non-palindromic numbers such that either x=q1.Rev[x] or Rev[x]=q2.x, where R[x]=A004086[x] and q1 or q2 are integers not divisible by 10.at n=25A071687
• Number of 6 X 6 arrays of squares of integers, symmetric about main diagonal, with all rows summing to n.at n=10A156388
• 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=21A156414
• Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 10.at n=4A156451
• a(n) = 49*n^2 - n.at n=33A157923
• a(n) = 196*n^2 - 2*n.at n=16A158224
• a(n) = 1156*n^2 - 34.at n=6A158729
• Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039).at n=21A341604
• Numbers that are not palindromes even after removing trailing zeros and are divisible by their reverses.at n=30A345361
• a(n) is the smallest positive integer which can be represented as the sum of n distinct nonzero square pyramidal numbers in exactly n ways, or -1 if no such integer exists.at n=24A360218