226576

Appears in sequences

• Cube of the lower triangular normalized partition matrix.at n=33A027517
• Third diagonal of A027517.at n=5A027524
• Number of 2n-bead balanced binary strings, rotationally equivalent to reversed complement, inequivalent to reverse and complement.at n=14A045660
• a(n) = Product_{d|n} (n/d + d).at n=32A045661
• Squares whose decimal digits are nonsquares (2, 3, 5, 6, 7, 8).at n=19A077437
• Squares using only squarefree digits (2, 3, 5, 6, 7).at n=17A077676
• Least square k^2 > n^2 whose decimal expansion ends in n^2.at n=24A090292
• Perfect squares in A133459; or perfect squares that are the sums of two nonzero pentagonal pyramidal numbers.at n=23A136359
• Numbers of the form p^4*q^2*r^2 where p, q, and r are distinct primes.at n=29A179746
• Number of 0..n arrays x(0..3) of 4 elements without any interior element greater than both neighbors.at n=26A200887
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=16A207450
• Number of permutations (p(1), p(2), ..., p(n)) satisfying -k <= p(i)-i <= r and p(i)-i not in the set I, i=1..n, with k=2, r=6, I={-1,1,2,3,4,5}.at n=42A224808
• Number of (n+2) X (5+2) 0..1 arrays with no 3 x 3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum.at n=17A258891
• Powerful numbers (A001694) whose sum of powerful divisors (including 1) is also powerful.at n=13A349109