23644
domain: N
Appears in sequences
- Numerators of continued fraction convergents to sqrt(273).at n=6A041512
- Number of conjugated cycles composed of six carbons in (1,1)-nanotubes in terms of the number of naphthalene units.at n=7A121257
- Number of lower triangles of a 4 X 4 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by one or less.at n=10A195234
- Number of times when an even number is encountered, when going from 2^(n+1)-1 to (2^n)-1 using the iterative process described in A071542.at n=19A218542
- Number of (5+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=35A250659
- Numbers n such that Bernoulli number B_{n} has denominator 1410.at n=27A272369
- Number of parts in all partitions of n with largest multiplicity seven.at n=31A320377
- a(n) = Sum_{-n<i<n, -n<j<n, gcd{i,j}=1} (n-|i|)*(n-|j|).at n=13A331771
- Triangle read by rows: T(n,k) is the number of bicolored cubic graphs on 2n unlabeled vertices with k vertices of the first color, n >= 0, 0 <= k <= 2*n.at n=41A361361
- Triangle read by rows: T(n,k) is the number of bicolored cubic graphs on 2n unlabeled vertices with k vertices of the first color, n >= 0, 0 <= k <= 2*n.at n=43A361361