45813

Appears in sequences

• Index k in A095773 where a string of n identical values occurs.at n=38A096183
• Triangle read by rows: row n gives coefficients of increasing powers of x in the polynomial (-1)^n*p(n), where p(n) is defined as follows. Let f(n) = n*(n+1)/2, g(n) = f(n)+1; then p(-1) = 0, p(0) = 1 and for n >= 1, p(n) = (x - f(n))*p(n - 1) - g(n - 1)^2*p(n - 2).at n=21A135049
• a(1) = 1; if a(n) is not divisible by 3, a(n+1) = 4*a(n) + 1, otherwise a(n+1) = a(n)/3.at n=29A346035
• a(n) = Sum_{k=0..n} 2^(n-k) * binomial(k+2,2) * binomial(k,n-k)^2.at n=8A391689