976563

Appears in sequences

• a(n) = (5^n + 1)/2.at n=9A034478
• a(n) = ceiling(5^n/n).at n=9A129789
• Number of compositions of even numbers into 9 parts <= n.at n=4A191496
• Dispersion of A016873, (5k+3), by antidiagonals.at n=45A191705
• Permutation of natural numbers, the even bisection of A241909 incremented by one and halved; equally, a composition of A241909 and A048673: a(n) = A048673(A241909(n)).at n=45A243066
• Square array read by descending antidiagonals: T(n,k) = ((2^(n+1) + 1)^(k-1) + 1)/2.at n=45A266577
• a(n) is the smallest positive integer of length (distance from origin) n in the Cayley graph of the integers generated by all powers of 5.at n=18A294566