24221
domain: N
Appears in sequences
- 5-digit terms in the continued fraction for Pi.at n=29A048960
- Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 15.at n=25A051980
- n^2-79*n+1601 as n runs through the lucky numbers.at n=38A087867
- Composite numbers generated by the Euler polynomial x^2 + x + 41.at n=29A145292
- Numerators of the inverse binomial transform of the sequence of fractions A172030(n)/A172031(n).at n=15A172194
- Numerators of the inverse binomial transform of the sequence of fractions A172030(n)/A172031(n).at n=16A172194
- Numbers n for which A222085(n)=A222085(n+1).at n=26A222088
- Semiprimes generated by the Euler polynomial x^2 + x + 41.at n=29A228183
- Number of arrays of median of three adjacent elements of some length-5 0..n array, with no adjacent equal elements in the latter.at n=27A229013
- Sum of the prime parts in the partitions of n into 10 parts.at n=35A309471
- a(n) is the smallest denominator D of the fraction N/D with 1 <= D < 2^n which is closest to (3/2)^n.at n=22A324204
- The number of vertices inside a pentagram formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=3A333117
- Sum of number of divisors of x^y for each x >= 1, y >= 0, x + y = n.at n=46A343657