25770

Appears in sequences

• Numbers k such that 165*2^k-1 is prime.at n=51A050834
• Least k such that k * M(n) * M(n+1) + 1 is prime where M(n) = A000668(n).at n=24A098917
• Total length of longest runs of 1's in all bitstrings of length n.at n=12A119706
• Number of isomeric aza-benzenoids with one nitrogen atom and n hexagons.at n=7A121949
• 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), (0, 1, -1), (0, 1, 1), (1, 0, 0), (1, 1, 1)}.at n=7A151199
• Numbers k such that 3^k - 26 is prime.at n=17A219045
• Partial sums of A253090.at n=42A255603
• Numbers k such that (2^k + 5) / 3 is prime.at n=19A273009
• Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=7A302620
• Number of length-n ternary words having at most 5 palindromic subwords (including the empty word).at n=37A329023
• The number of vertices formed by straight line segments mutually connecting all vertices of a semicircular polygon defined in A333642.at n=26A330913