43798

Appears in sequences

• Number of benzenoids with 23 hexagons, C_(2v) symmetry and containing n carbon atoms.at n=14A123142
• Numbers n such that sigma(2*phi(n)) = 2*sigma(n).at n=22A137733
• Triangle T, read by rows, where the n-th diagonal of T equals the BINOMIAL transform of the (n-1)-th diagonal of T^2 for n>=1, with the zeroth diagonal set to all 1's and where T^2 denotes the matrix square of T.at n=40A141712
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 0), (1, -1, 1), (1, 0, -1), (1, 1, 0)}.at n=9A149219
• Numbers n such that n^2 is a sum of 2 and also of 4 consecutive primes.at n=37A252066
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 161", based on the 5-celled von Neumann neighborhood.at n=42A270452