132888

Appears in sequences

• Theta series of D_7 lattice.at n=19A008429
• Matrix product of unsigned Stirling1-triangle |A008275(n,k)| and unsigned Lah-triangle |A008297(n,k)|.at n=22A079640
• Bisections are {b(n)*b(n+1), n>=0} (shifted) and {b(n)^2, n>=0} where {b(n), n>=0} is the self-convolution of this sequence, with a(0)=1.at n=14A173610
• Even bisection of A173610.at n=7A173613
• E.g.f. satisfies: A'(x) = [A(x)^2 + A(x)^3]/(x^2 + x^3).at n=7A179495
• a(0)=a(1)=1, a(n) = least k > a(n-1) such that k*a(n-2) is an oblong number.at n=43A214963