127459

Appears in sequences

• exp(sinh(x)+log(x+1))=1+2*x+3/2!*x^2+5/3!*x^3+13/4!*x^4+37/5!*x^5...at n=11A013013
• a(n) = Sum_{k=0..n-1} C(n-1,k)*a(k)*2^k for n>0, with a(0)=1.at n=6A126443
• Square array A(n,k), n>=0, k>=0, read by antidiagonals, where A(0,k) = 1 and A(n,k) = Sum_{j=0..n-1} k^j * binomial(n-1,j) * A(j,k) for n > 0.at n=42A306245
• a(n) = a(n-1) + a(a(n-1) mod n) + 1, a(0) = 1.at n=43A308576
• Triangle, read by rows, where T(n,k) = T(n-1,k-1) + 2*T(n,k-1) when k > 0, else T(n,0) = T(n-1,n-1) when n > 0, with T(0,0) = 1.at n=20A376177
• Triangle, read by rows, where T(n,k) = T(n-1,k-1) + 2*T(n,k-1) when k > 0, else T(n,0) = T(n-1,n-1) when n > 0, with T(0,0) = 1.at n=21A376177
• Number of compositions (ordered partitions) of n into reciprocals of positive integers <= n.at n=4A378842