230447

Appears in sequences

• Floor[X/Y] where X = concatenation in decreasing order of (n+1)-st odd number through the 2n-th odd number and Y = concatenation in increasing order of first n odd numbers.at n=7A067094
• a(n) = (a(n-1) - a(n-3))*7^((1+(-1)^n)/2) with a(6)=5, a(7)=4, a(8)=22.at n=17A215139