33462

Appears in sequences

• Theta series of A*_12 lattice.at n=34A023924
• First numerator and then denominator of the central elements of the 1/5-Pascal triangle (by row).at n=16A046610
• First denominator and then numerator of the central elements of the 1/5-Pascal triangle (by row).at n=17A046611
• Distinct numbers in writing first numerator and then denominator of the central elements of the 1/5-Pascal triangle (by row).at n=8A046612
• Distinct even numbers in the numerators of the 1/5-Pascal triangle (by row).at n=29A046626
• a(n) = C(n)*(11n+1) where C(n) = Catalan numbers (A000108).at n=7A050490
• Expansion of (2-3*x-x^2)/((1-x)*(1-2*x-x^2)).at n=12A052937
• a(n) = (5*n + 4)*binomial(n+7,7)/4.at n=7A056125
• Composite numbers k such that phi(k) divides sigma(k) - 2*k.at n=23A068412
• Solutions to x+phi(x) = sigma(x)/2.at n=3A099650
• 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, 1), (-1, 0, 0), (0, 1, 0), (1, -1, 0), (1, 1, -1)}.at n=11A148135
• Expansion of (1+x)*(2*x-1)/((1-x)*(x^2+2*x-1)).at n=13A174191
• Number of 4-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=36A187378
• Number of n X n symmetric binary matrices with each 1 adjacent to no more than 1 knight-move neighboring 1.at n=5A191569
• Augmentation of the triangular array P=A130296 whose n-th row is (n+1,1,1,1,1...,1) for 0<=k<=n. See Comments.at n=33A193094
• a(n) = 22*n^2.at n=39A195323
• a(n) = Pell(n) * Sum_{d|n} 1/Pell(d), where Pell(n) = A000129(n).at n=12A203797
• a(n) = Pell(n) * Sum_{d|n} (-1)^(n/d) / Pell(d), where Pell(n) = A000129(n).at n=12A204059
• Number of nX4 0..1 arrays with no occurrence of three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..1 introduced in row major order.at n=7A204193
• Sixth partial sums of cubes (A000578).at n=7A254469