41756

Appears in sequences

• a(n) is the number of polyominoes with n edges, including inner edges.at n=36A131487
• Numbers k such that 3*R_k + 10 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=17A256570
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood.at n=39A271399
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 393", based on the 5-celled von Neumann neighborhood.at n=7A271603
• Product_{d|n, d>1} prime(A003415(d)), where A003415(x) gives the arithmetic derivative of x.at n=17A327930
• Number of compositions (ordered partitions) of n into distinct parts, the least being 2.at n=37A339163