121125
domain: N
Appears in sequences
- a(n) = number of (s(0), s(1), ..., s(2n)) such that s(i) is a nonnegative integer and |s(i) - s(i-1)| = 1 for i = 1,2,...,n, s(0) = 3, s(2n) = 7. Also a(n) = T(2n,n-2), where T is defined in A026022.at n=8A026031
- a(n) = binomial(n+2,3)*5^3.at n=16A141480
- Displacement under constant discrete unit surge.at n=17A207361
- a(n) is the binary XOR of all n-bit squares, with a(2)=0 indicating that no 2-bit squares exist.at n=16A298816