12207030

Appears in sequences

• a(0) = 0; a(n) = 5*a(n-1) + 5.at n=10A104891
• a(1)=1, a(n) = a(n-1) + (p-1)*p^(n/2-1) if n is even, otherwise a(n) = a(n-1) + p^((n-1)/2), where p=5.at n=19A133629
• Triangle T(n, k) = (f(k, n-k+1) + f(n-k+1, k))/2 where f(n, k) = (1/2)*Sum_{j=1..2*n} k^j, read by rows.at n=40A173567
• a(n) = Sum_{k=1..10} n^k.at n=5A228294