38019

Appears in sequences

• Numbers n such that 223*2^n-1 is a prime.at n=8A050863
• Number of ordered triples (i,j,k) with |i| + |j| + |k| <= n and gcd(i,j,k) <= 1.at n=32A100450
• Totally multiplicative sequence with a(p) = 10p-1 for prime p.at n=41A166659
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 5", based on the 5-celled von Neumann neighborhood.at n=37A270008
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 5", based on the 5-celled von Neumann neighborhood.at n=38A270008
• Alternating sum of centered octagonal pyramidal numbers.at n=38A270695
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 261", based on the 5-celled von Neumann neighborhood.at n=37A271062
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 469", based on the 5-celled von Neumann neighborhood.at n=37A272418
• Numerator of harmonic mean of 3 consecutive primes. Denominators are A331260.at n=7A331259
• Number of integer compositions of n into parts that are alternately unequal and equal.at n=35A357644