79091
domain: N
Appears in sequences
- a(0)=0, a(1)=1, a(n)=a(n-1)+a(n-2)+a(n-3) if a(n-1) is even, a(n)=a(n-1)+a(n-2) if a(n-1) is odd.at n=22A078513
- Brilliant numbers (A078972) whose digit reversal is a pentagonal number (A000326).at n=13A115679
- a(n) = 52*n^2 - 1.at n=38A158640
- Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,0,1,4 for x=0,1,2,3,4.at n=4A196586
- Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,0,1,4 for x=0,1,2,3,4.at n=3A196587
- T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,2,0,1,4 for x=0,1,2,3,4.at n=31A196590
- T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,2,0,1,4 for x=0,1,2,3,4.at n=32A196590
- a(n) = Round((gamma^2 + 1)/gamma^(n-2)).at n=22A245531
- Number of separable partitions of n in which the number of distinct (repeatable) parts is 6.at n=51A325650