671088639
domain: N
Appears in sequences
- a(n) = 5*2^(n-1) - 1, n>0, with a(0)=1.at n=28A052549
- a(n) = T(n,1), array T as in A054134.at n=28A054135
- a(n) = Sum_{k=0..n} binomial(n+(-1)^k, k).at n=28A087940
- a(n) = 5*2^n - 1.at n=27A153894
- a(n) = 5*8^n - 1.at n=9A198853
- a(n) is the least integer m > 1 such that n is the largest number of identical digits that can end m^k for positive integer k.at n=26A244364