23954

Appears in sequences

• Numbers k such that the quotient (sigma(k) + sigma(k+1) + sigma(k+2))/sigma(3*k+3) is an integer.at n=3A091292
• A Chebyshev transform of the first kind of the central binomial numbers.at n=9A102879
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (0, 1), (1, -1), (1, 0), (1, 1)}.at n=10A151445
• a(n) = n^3 - n*(n+1)/2.at n=29A160378
• Numbers k such that k^3 divides 15^(k^2) - 1.at n=44A177915
• Sum of positive Dyson's ranks of all partitions of n.at n=31A209616
• Number of time intervals that can be measured with n ropes and a lighter from the moment when the first rope begins burning.at n=12A283075
• Length of the n-th Golomb ruler constructed by the Paul Erdős and Pál Turán formula.at n=8A380790