211524139
domain: N
Properties
Primality
- Prime
- yes
Appears in sequences
- Numerators of row sums of array of ratios A111879(n,k)/A111880(n,k).at n=20A111881
- Numerator of q_n = -4*n + 2*(1+n)*HarmonicNumber(n).at n=22A115107
- a(n) = numerator of AM(n)-HM(n), where AM(n) and HM(n) are the arithmetic and harmonic means of the first n positive integers.at n=21A368372
- Prime numbersat n=11681083