265200
domain: N
Appears in sequences
- Numbers m such that sigma(4*m+3) = 6*m.at n=8A067678
- Triangle read by rows: T(n,k) (0 <= k <= n) is the number of Delannoy paths of length n, having k return steps to the line y = x from the line y = x+1 or from the line y = x-1 (i.e., E steps from the line y = x+1 to the line y = x or N steps from the line y = x-1 to the line y = x).at n=47A110107
- Numbers taking exactly 21 steps to reach 15 in A086793.at n=25A119397
- Molecular topological indices of the cocktail party graphs.at n=25A181773
- Integer areas A of integer-sided cyclic quadrilaterals such that the circumradius is of prime length.at n=43A230136
- Number of compositions of n with difference -4 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=16A242837
- Positive integers that have a record number of divisors in Gaussian integers.at n=42A279254
- Numbers k that are unitary harmonic in Gaussian integers: k * A332476(k) is divisible by A332472(k) + i*A332473(k) (where i is the imaginary unit).at n=20A332477
- a(n) = A351477(n) * FC where F is the Fermat point of a primitive integer-sided triangle ABC with A < B < C < 2*Pi/3 and FA + FB + FC = A336329(n).at n=26A351803