37881

Appears in sequences

• Centered octahedral numbers (crystal ball sequence for cubic lattice).at n=30A001845
• Ruth-Aaron numbers (2): sum of prime divisors of n = sum of prime divisors of n+1 (both taken with multiplicity).at n=34A039752
• Numbers k such that sopfr(k) = sopf(k+1), where sopf(k) = A008472(k) and sopfr(k) = A001414(k).at n=25A064675
• Numerators of coefficients in series expansion of -512*(1+x)^3/(x-8)^3.at n=30A066414
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, -1), (-1, 0, 1), (1, 0, 1), (1, 1, 0)}.at n=8A150685
• a(j) = maximum value of n for each distinct increasing value of (Sum of the quadratic non-residues of prime(n) - Sum of the quadratic residues of prime(n)) / prime(n) for each j.at n=28A166263
• Antidiagonal sums of the convolution array A213566.at n=12A213570
• Number of length n+1 0..4 arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.at n=5A250163
• T(n,k)=Number of length n+1 0..k arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.at n=41A250167
• Number of length 6+1 0..n arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.at n=3A250171
• Number of length-4 0..n arrays with no repeated value differing from the previous repeated value by other than plus two or minus 1.at n=12A269641
• Expansion of Sum_{k>=0} x^k * Product_{j=0..k-1} (j + 3 * x).at n=9A352802
• Number of chordless cycles (of length >=4) in the complement of the n-polygon diagonal intersection graph.at n=6A364943
• Number of ways to tile a "central bump" strip of length n with 1 X 1 squares and 1 X 3 rectangles.at n=23A385933