211248

Appears in sequences

• Fifth convolution of A000129(n+1) (generalized (2,1)-Fibonacci, called Pell numbers), n>=0, with itself.at n=7A073382
• Initial terms of chains consisting of four consecutive integers, for none of which is the value of sigma-function divisible by six.at n=15A097020
• Initial terms of chains consisting of five consecutive integers, for neither of which the value of sigma-function is divisible by six.at n=0A097021