31879

Appears in sequences

• Number of partitions of n into parts but with two kinds of parts of sizes 1 to 8.at n=21A103927
• Pyramid game person numbers that have integer solutions.at n=31A135051
• 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, 1, 0), (0, 0, 1), (1, 0, -1)}.at n=12A148072
• Number of 5-bead necklaces labeled with numbers -n..n allowing reversal, with sum zero with no three beads in a row equal.at n=12A209346
• a(n) = n^3 + 2*n^2 + 5*n + 11.at n=31A271779
• Number of points of norm <= n in the body-centered cubic lattice with the lattice parameter equal to 2/sqrt(3).at n=18A276648
• Smallest value of the Colijn-Plazzotta rank among n-leaved unlabeled binary rooted trees.at n=37A354970
• Number of skew shapes in a 3 X n rectangle with no empty rows or columns.at n=22A362153
• a(n) is the denominator corresponding to A376609(n).at n=5A376610
• A373711(n) is equal to the a(n)-th A379973(n)-gonal number.at n=43A379974
• a(n) = 2^n*(n^2/4+n/4+4) - Fibonacci(n+4).at n=10A387939