281048
domain: N
Appears in sequences
- Numbers having n digits in base n+1, and equal to the determinant of a circulant matrix based on these digits.at n=9A303261
- Numbers equal to the determinant of a circulant matrix based on the base-8 digits of n.at n=16A303368
- a(n) = Sum_{k=1..n} binomial(2*n - 3*k + 1, n - k)*k/(n - k + 1).at n=13A319636