-1348

Appears in sequences

• An Alexander sequence for the knot 6_3.at n=12A099447
• a(n) = -2*n^2 + 12*n - 14.at n=28A147973
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 363", based on the 5-celled von Neumann neighborhood.at n=21A268194
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 139", based on the 5-celled von Neumann neighborhood.at n=23A270281
• Expansion of Product_{k>0} (1+k^2*x^k)^(-1/k).at n=14A303354
• Expansion of 1/(theta_3(q) * theta_3(q^2)), where theta_3() is the Jacobi theta function.at n=17A320069
• a(n) is the determinant of the n X n symmetric matrix M(n) that is defined as M[i,j] = abs(i - j) if min(i, j) < max(i, j) <= 2*min(i, j), and otherwise 0.at n=9A353452