7096320

Appears in sequences

• Denominators of Taylor series expansion of (exp(1-exp(x))-1)/(1-exp(x)).at n=11A051781
• On a 3 X 3 board, number of n-move routes of chess king ending in a given side square.at n=10A086347
• a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1)*4^(n-k-1).at n=12A099582
• a(1) = 1; a(n)= 2*lcm(n, a(n - 1)).at n=10A191778
• Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=10A207455
• Where records occur in A222084.at n=38A222089
• E.g.f. equals the series reversion of tanh(x) / exp(x).at n=7A227466
• Smallest number k such that the symmetric representation of sigma(k) has maximum width n for those k whose representation has nondecreasing width up to the diagonal.at n=23A250071
• For those rows n of A249223 which are weakly increasing, let w(n) denote the maximal entry in the row: sequence gives values of n for which w(n) sets a new record.at n=11A340506
• a(1)=2048. For n>1, a(n) is the LCM of a(n-1) and A140635(a(n-1)).at n=3A351162
• a(0) = 1, a(n) = harmonic_mean(a(n-1), n), where harmonic_mean(p, q) = 2/(1/p + 1/q); numerators.at n=11A353250
• a(n) = Sum_{k=0..floor(n/3)} (k+1) * 2^k * 3^(n-3*k) * binomial(k,4*(n-3*k)).at n=31A392075