-1031

Appears in sequences

• a(n) = Sum_{t=0..n} g(t)*g(n-t) where g(t) = A002121(t).at n=30A002122
• Sum of logarithmic numbers.at n=6A002749
• McKay-Thompson series of class 15b for Monster.at n=54A058513
• Engel expansion for (negative) constant defined in A078756.at n=11A080231
• a(n) = Sum_{k=0..n} A105595(k)*(-1)^k*A105595(n-k) (interpolated zeros suppressed).at n=34A105596
• Triangle read by rows: row n gives coefficients of increasing powers of x in characteristic polynomial of the matrix (-1)^n*M_n, where M_n is the tridiagonal matrix defined in the Comments line.at n=29A124037
• a(n) = 2*n^3 - 163*n^2 + 2777*n - 11927.at n=16A218458
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 315", based on the 5-celled von Neumann neighborhood.at n=17A271249
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 453", based on the 5-celled von Neumann neighborhood.at n=19A272276