46515
domain: N
Appears in sequences
- Number of length 3 walks on an n-dimensional hypercubic lattice starting at the origin and staying in the nonnegative part.at n=35A064043
- 1/4 the number of (n+1)X4 0..3 arrays with every 2X2 subblock having exactly two distinct clockwise edge differences.at n=3A209548
- 1/4 the number of (n+1)X5 0..3 arrays with every 2X2 subblock having exactly two distinct clockwise edge differences.at n=2A209549
- T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having exactly two distinct clockwise edge differences.at n=17A209553
- T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having exactly two distinct clockwise edge differences.at n=18A209553
- O.g.f.: Sum_{n>=0} (1+n^2*x)^n * x^n/n! * exp(-(1+n^2*x)*x).at n=10A218684
- Number of partitions p of n such that the number of numbers having multiplicity 1 in p is a part of p.at n=44A241413
- Numbers equidistant from twin prime pairs that are also equidistant from numbers equidistant from twin prime pairs.at n=38A260517
- a(n) = Sum_{k=1..n-1} tau(k) * sigma_2(n-k).at n=33A374973