44951

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 27 ones.at n=23A031795
• Numbers k such that sigma(k) - phi(k) is a 4th power.at n=36A115918
• Numbers k that divide the sum of digits of 13^k.at n=56A175525
• Wiener index of a benzenoid consisting of a spiral chain of n hexagons (s=1; see the Gutman et al. reference).at n=22A193391
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 181", based on the 5-celled von Neumann neighborhood.at n=39A270628
• Number of nX4 0..1 arrays with each 1 adjacent to 0, 3 or 5 king-move neighboring 1s.at n=6A296830
• Number of nX7 0..1 arrays with each 1 adjacent to 0, 3 or 5 king-move neighboring 1s.at n=3A296833
• T(n,k)=Number of nXk 0..1 arrays with each 1 adjacent to 0, 3 or 5 king-move neighboring 1s.at n=48A296834
• T(n,k)=Number of nXk 0..1 arrays with each 1 adjacent to 0, 3 or 5 king-move neighboring 1s.at n=51A296834