133489domain: NAppears in sequencesConcatenate Fibonacci(n), Fibonacci(n+2) and Fibonacci(n+4).at n=7A134550a(n) = numerator of Sum_{d|n} tau(d)/pod(d) where tau(k) = the number of the divisors of k (A000005) and pod(k) = the product of the divisors of k (A007955).at n=23A323706