175682
domain: N
Appears in sequences
- Number of perfect matchings on an n X n L-shaped graph.at n=13A079472
- Row sums of an unsigned characteristic triangle for the Fibonacci numbers.at n=13A110035
- Number of derangements of [n] avoiding the patterns 123, 132 and 213.at n=26A114215
- Lower Wythoff values for sequence A185615(n).at n=36A185616
- Numbers n such that n^3 = x*y*z where 2 <= x <= y <= z , n^3+1 = (x-1)*(y+1)*(z+1).at n=6A240836
- a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 1, a(1) = 2, a(2) = 3, a(3) = 4.at n=25A293411
- a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 0, a(1) = 0, a(2) = 0, a(3) = 2.at n=28A295680
- a(n) = A000045(n)*A000045(n+1) mod A000032(n).at n=27A357553