-4371

Appears in sequences

• McKay-Thompson series of class 15B for Monster.at n=46A058509
• McKay-Thompson series of class 24f for the Monster group with a(0) = -2.at n=46A093067
• a(n) = 3 - 2*3^n.at n=7A165746
• A symmetrical triangle sequence: T(n, k) = q^k + q^(n-k) - q^n, with q=3.at n=37A176225
• A symmetrical triangle sequence: T(n, k) = q^k + q^(n-k) - q^n, with q=3.at n=43A176225
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 461", based on the 5-celled von Neumann neighborhood.at n=37A272294