1221536

Appears in sequences

• Pisot sequences E(6,8), P(6,8).at n=43A020716
• a(1) = greatest k such that H(k) - H(8) < H(8) - H(4); a(2) = greatest k such that H(k) - H(a(1)) < H(a(1)) - H(8), and for n > 2, a(n) = greatest k such that H(k) - H(a(n-1)) > H(a(n-1)) - H(a(n-2)), where H = harmonic number.at n=20A227804
• The number of partitions of [n] with exactly 2 blocks without peaks.at n=25A289692