975312468

Appears in sequences

• Alternately append n to end or beginning of previous term.at n=8A053064
• Concatenate the decimal numbers n n-2 n-4 ...5 3 1 2 4 ... n-5 n-3 n-1 if n is odd, or n n-2 n-4 ... 6 4 2 1 3 5 ... n-5 n-3 n-1 if n is even.at n=8A281254