18537

Appears in sequences

• Positive numbers k such that k and 2*k are anagrams in base 9 (written in base 9).at n=30A023079
• Integers arising in A133677.at n=20A133645
• Number of (n+1) X (6+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=2A250810
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=30A250812
• Number of (3+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=5A250815
• Expansion of e.g.f. exp(x * exp(-x * (exp(-x) - 1))).at n=8A362246
• Expansion of e.g.f. exp(x^3 + x * exp(x^3/6)).at n=8A375656