25817
domain: N
Appears in sequences
- Class numbers of quadratic fields.at n=19A001985
- Class numbers of quadratic fields.at n=20A001985
- sech(sin(arcsinh(x)))=1-1/2!*x^2+13/4!*x^4-421/6!*x^6+25817/8!*x^8...at n=4A012045
- Decimal part of a(n)^(1/5) starts with a 'nine digits' anagram.at n=13A034280
- Number of partitions satisfying cn(0,5) + cn(2,5) <= cn(1,5) and cn(0,5) + cn(2,5) <= cn(4,5) and cn(0,5) + cn(3,5) <= cn(1,5) and cn(0,5) + cn(3,5) <= cn(4,5).at n=50A039883
- a(n) = n^4 - (n+1)^3.at n=13A178617
- Number of (w,x,y) with all terms in {0,...,n} and w>floor((x+y)/3).at n=33A212974