22905

Appears in sequences

• Denominators of continued fraction convergents to sqrt(990).at n=6A042917
• When expressed in base 2 and then interpreted in base 7, is a multiple of the original number.at n=36A062848
• Structured great rhombicosidodecahedral numbers.at n=8A100145
• Let f(n) = exp(Pi*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10^3.at n=26A127028
• Let f(n) = exp(Pi*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10^4.at n=4A127029
• Let f(n) = exp(Pi*sqrt(n)); sequence gives numbers n such that f(n) - floor(f(n)) < 1/10^5.at n=2A127030
• 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, 0, -1), (0, 0, 1), (0, 1, 1), (1, -1, -1)}.at n=9A149870
• 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, -1), (0, 1, 0), (0, 1, 1), (1, -1, -1)}.at n=9A149871
• a(n) = n^2 * a(n-1) + n, a(0)=0.at n=5A180255
• Number of digits of A014980(n) in decimal representation.at n=18A194079
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 345", based on the 5-celled von Neumann neighborhood.at n=32A271295
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 350", based on the 5-celled von Neumann neighborhood.at n=39A271303
• Numbers m such that m^2+1 is semiprime with (m-1)^2+1 and (m+1)^2+1 primes.at n=39A321985
• Number of ways to write n as an ordered sum of 5 squarefree numbers.at n=40A341065
• Starts of runs of at least 3 consecutive odd numbers whose prime factors are all prime-indexed primes.at n=23A357168