128220
domain: N
Appears in sequences
- Values of n such that N=(an+1)(bn+1)(cn+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,33.at n=27A064253
- Sequence uniquely defined by: (n-1)*a(n) = n*[x^n] B(x) for n>1 with a(0)=a(1)=1, or, equivalently, 1+x - A(x) + x*A'(x) = x*B'(x), where B(x) = x/series_reversion(x*A(x)).at n=6A120958
- Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random 0..1 nX4 array.at n=7A218080