28350

Appears in sequences

• a(n) = LCM of denominators of Cotesian numbers {C(n,k), 0 <= k <= n}.at n=7A002176
• Denominators of coefficients for repeated integration.at n=3A002682
• BIK(b)-b where b is A035082.at n=15A035084
• McKay-Thompson series of class 28A for Monster.at n=36A058606
• Numbers k such that Sum_{d divides k} sigma(d)/phi(d) is an integer.at n=27A068991
• Numbers k such that A074037(k) = A002034(k).at n=29A074055
• Stirling2 triangle with scaled diagonals (powers of 3).at n=32A075498
• Fifth column of triangle A075498.at n=3A075515
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=4, I={3}.at n=17A079975
• Denominator of Cotesian number C(n,0).at n=8A100621
• Triangle read by rows: denominators of Cotesian numbers C(n,k) (0 <= k <= n).at n=36A100641
• Triangle read by rows: denominators of Cotesian numbers C(n,k) (0 <= k <= n).at n=44A100641
• Triangle read by rows: T(n,k) is the sum of the weights of all vertices labeled k at depth n in the Catalan tree (1 <= k <= n+1, n >= 0).at n=23A102625
• a(n) = A051707(A025487).at n=34A108460
• Triangle T(n,k) = number of permutations of n elements with k 2-cycles.at n=27A114320
• Minimal Goedel number of endofunctions on k points, by row and sorted within rows (number of points).at n=24A125024
• A129027(n)/4.at n=10A129028
• Irregular triangle read by rows: T(n, k) = f(n, A113474(n-1) - k), where f(n, k) = (n-1)!/2^k if (n-1)!/2^k is an integer, otherwise f(n, k) = 0.at n=41A129915
• A triangular sequence of coefficients of a PolyLog functional polynomials: p(x,n) = 16*x^(n + 1)*PolyLog(-n, (1 - x)/(1 + x))/((1 + x)*(1 - x)).at n=41A142154
• Number of cycles with entries of the same parity in all fixed-point-free involutions of {1,2,...,2n}.at n=6A161122