24224

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 77.at n=38A031575
• Numerators of continued fraction convergents to sqrt(472).at n=8A041900
• First differences of A109033.at n=9A109034
• Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with x(i)+x(j), x(i+1)+x(j+1), -(x(i)+x(j+1)), and -(x(i+1)+x(j)) having two or three distinct values for every i<=n and j<=n.at n=10A211461
• Number of ways 1/n can be expressed as the sum of four distinct unit fractions: 1/n = 1/w + 1/x + 1/y + 1/z satisfying 0 < w < x < y < z.at n=42A241883
• Numbers with digits 2 and 4 only.at n=39A284920
• Numbers k such that 3 is the smallest decimal digit of k^4.at n=41A291671
• Array read by antidiagonals: T(m,n) is the number of mutual-visibility sets in the grid graph P_m X P_n.at n=47A392417
• Array read by antidiagonals: T(m,n) is the number of mutual-visibility sets in the grid graph P_m X P_n.at n=52A392417
• Number of mutual-visibility sets in the n X 3 grid graph.at n=7A392419