44745

Appears in sequences

• a(n) = (n+1)*(n+2)*(n+3)*(9n+4)/24.at n=17A051798
• Number of (s(0), s(1), ..., s(2n)) such that 0 < s(i) < 9 and |s(i) - s(i-1)| = 1 for i = 1,2,...,2n, s(0) = 1, s(2n) = 5.at n=8A094828
• Expansion of (x^2)/[(1-x)*(1-3*x^2-x^3)].at n=19A188021
• G.f. C(x) satisfies: C(x) = x + 3*A(x)*B(x), where A(x) = x + B(x)*C(x) and B(x) = x + 2*A(x)*C(x).at n=7A229813
• a(1) = 16. For n > 1, a(n) is the position of the first occurrence of a(n-1) after the decimal point in the decimal expansion of Pi.at n=18A247345
• a(1) = 16. For n > 1, a(n) is the position of the first occurrence of a(n-1) after the decimal point in the decimal expansion of Pi.at n=38A247345
• Number of length 1+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=31A248538
• Expansion of x * (d/dx) 1/(1 - Sum_{k>=0} x^(2^k)).at n=15A304908
• Lengths of runs of identical terms in A353710.at n=42A353718