20922

Appears in sequences

• Numbers whose base-12 representation has exactly 5 runs.at n=27A043654
• a(n) is the smallest integer k such that the n-th (forward) difference of the partition sequence A000041 is positive from k onwards.at n=34A119712
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (0, 1), (1, -1), (1, 1)}.at n=11A151398
• Numbers n for which A222085(n)=A222085(n+1).at n=21A222088
• Second series of Hankel determinants based on Bell numbers of argument k^2, Bell(k^2).at n=2A278903
• Numbers k such that Bernoulli number B_{k} has denominator 64722.at n=15A295592
• Number of permutations f of {1,...,n} with f(1) < f(n) such that Sum_{k=1..n-1} 1/(f(k)+f(k+1)) = 1.at n=12A322070