18822

Appears in sequences

• Decimal part of cube root of a(n) starts with 6: first term of runs.at n=24A034132
• Number of primes of the form x^2 + 1 < 10^n.at n=10A083844
• Members of 3-cycles of permutation A111273.at n=15A113701
• Least j such that 6*p(j)*M(n)-1 is prime with p(j)=j-th prime and M(n) = Mersenne prime.at n=27A157333
• Number of partitions of [n] avoiding the pattern 231.at n=9A220912
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood.at n=29A270911
• Numbers k such that k and k+1 are both binary Moran numbers (A334344).at n=16A334345
• Numbers k such that the total number of digits d in the numbers from 1 to k is even for each d from 0 to 9.at n=39A380642