-3625

Appears in sequences

• Expansion of ((1+x)^4-(1+x)x^3)/((1+x)^5-x^5).at n=14A105370
• 1-gonal pyramidal numbers.at n=28A254749
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 113", based on the 5-celled von Neumann neighborhood.at n=35A270180
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 165", based on the 5-celled von Neumann neighborhood.at n=35A270460
• a(n) = Sum_{k >= 0}(-1)^k*binomial(n,5*k+1).at n=15A289321
• a(n) = Sum_{k >= 0}(-1)^k*binomial(n,5*k+1).at n=16A289321
• a(n) = Sum_{k>=0} (-1)^k*binomial(n,5*k+4).at n=15A289389