31306

Appears in sequences

• Third column (m=4) of array A090452.at n=21A090453
• a(n) = n*(12*n^3 + 10*n^2 - 9*n - 7)/6.at n=11A172080
• Numbers k such that the digit sum of 167^k is divisible by k.at n=44A175552
• a(n) = binary code (shown here in decimal) of the position of natural number n in the beanstalk-tree A218776.at n=35A218615
• Expansion of f(-x^2)^5 * f(-x^12)^3 / (f(x)^2 * f(-x^8)^6) in powers of x where f() is a Ramanujan theta function.at n=61A262162
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 771", based on the 5-celled von Neumann neighborhood.at n=29A273500
• Irregular triangle read by rows: T(n,k) = number of size k subsets of S_n that remain unchanged under the operation of replacing a permutation with its inverse.at n=43A277081
• A331757(n)/2.at n=20A331758
• Number of partitions of n with rank a multiple of 4.at n=46A363233
• T(n, k) is the total number of non-symmetric peaks in all partitions of n with exactly k blocks, n >= 4, 3 <= k <= n-1.at n=22A370373