98944
domain: N
Appears in sequences
- Trajectory of 1 under map n->43n+1 if n odd, n->n/2 if n even.at n=22A033977
- Numbers m such that sigma(m+1)+sigma(m-1) = 6*phi(m).at n=25A067243
- Expansion of e.g.f. (1+x)*exp(3*x)*cosh(x).at n=8A082307
- Number of 8X2 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 8 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=19A192708