Convolution of the numbers in sequence A080253.

A217485

Convolution of the numbers in sequence A080253.

Terms

    a(0) =1a(1) =6a(2) =43a(3) =396a(4) =4565a(5) =64146a(6) =1073919a(7) =20996376a(8) =471081385a(9) =11947911966a(10) =338204687315

External references