254313151

Appears in sequences

• Base-5 digits are, in order, the first n terms of the periodic sequence with initial period 1,0.at n=12A033115
• a(n) = 1111111 in base n.at n=24A053716
• Triangle T(n, k, q) = q-binomial(n, k, q^2), for q = 5, read by rows.at n=29A173583
• Triangle T(n, k, q) = q-binomial(n, k, q^2), for q = 5, read by rows.at n=34A173583
• a(n) = (25^n - 1)/24.at n=7A218728
• Array t(n,k) of sum of successive even powers of primes, where t(n,k) = sum_(j=0..k-1) prime(n)^(2j), with n>=1 and k>=0, read by ascending antidiagonals.at n=52A241855