1397760

Appears in sequences

• Triangle of coefficients of Chebyshev's U(n,2*x-1) polynomials (exponents of x in increasing order).at n=50A053124
• Triangle of coefficients of Chebyshev's U(n,2*x-1) polynomials (exponents of x in decreasing order).at n=49A053125
• Fifth column of Lanczos triangle A053125 (decreasing powers).at n=5A054323
• Residue C(2^n,n) mod C(2^n,2).at n=11A060430
• Triangle related to generalized Catalan numbers A064340.at n=30A067327
• Sequence associated with recurrence a(n) = 2*a(n-1) + k*(k+2)*a(n-2).at n=11A080951
• Triangle: row #n has n+1 terms. T(n,m) = 4^m (2n+1)! / ( (2n-2m)! (2m+1)! ).at n=33A085841
• a(n) = 20*a(n-1) - 64*a(n-2) for n > 1; a(0) = 1, a(1) = 20.at n=5A166984
• a(n) = n^2 * (4*n^2 - 1) / 3.at n=32A187756
• Numbers k such that core(k) is equal to the sum of the proper square divisors of k, where core(k) = A007913(k).at n=20A225882
• Triangle read by rows, whose row sums using Euler numbers are the unsigned even-indexed Bernoulli numbers (denominators).at n=15A229097
• Triangle read by rows, whose row sums using Euler numbers are the unsigned even-indexed Bernoulli numbers (denominators).at n=20A229097
• Expansion of (1+4*x)/((1+2*x)*(1-4*x)).at n=10A246036
• Decimal representation of the n-th iteration of the "Rule 69" elementary cellular automaton starting with a single ON (black) cell.at n=10A266842
• Decimal representation of the n-th iteration of the "Rule 70" elementary cellular automaton starting with a single ON (black) cell.at n=10A266846
• Decimal representation of the n-th iteration of the "Rule 93" elementary cellular automaton starting with a single ON (black) cell.at n=10A267055
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 43", based on the 5-celled von Neumann neighborhood.at n=20A278446
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 278", based on the 5-celled von Neumann neighborhood.at n=20A287489
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 342", based on the 5-celled von Neumann neighborhood.at n=20A287745
• Number of 4-cycles in the n-tetrahedral graph.at n=16A289792