30495

Appears in sequences

• Numbers n such that phi(n)+phi(n+1)=n+1.at n=30A067798
• Position of first repeat of the opening sequence of length n occurring after the first repeat of the opening sequence of length n-1 in the Kolakoski sequence (A000002).at n=41A074300
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, -1), (0, 1, 1), (1, 0, 1)}.at n=8A150437
• Numbers k such that phi(k) = phi(k+2) - phi(k+1).at n=24A229552