28514
domain: N
Appears in sequences
- a(0) = 1, a(n) = 22*n^2 + 2 for n>0.at n=36A010012
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 13.at n=25A031601
- T(2n,n), array T as in A047030.at n=7A047039
- Number of lower triangles of a 5 X 5 0..n array with each element differing from all of its horizontal and vertical neighbors by one.at n=11A195001
- Total number of even parts in the last section of the set of partitions of n.at n=39A206434