10458256051
domain: N
Appears in sequences
- a(n) = 3^n - 2^n.at n=21A001047
- Nexus numbers (n+1)^21 - n^21.at n=2A022537
- G.f.: (2-x)/((1+2x)(1-3x)); e.g.f.: exp(3x)+exp(-2x); a(n)=3^n+(-2)^n.at n=21A087451
- Number of second differences of arrays of length n + 2 of numbers in 0..2.at n=18A228212
- Number of third differences of arrays of length n+3 of numbers in 0..2.at n=17A228254
- a(n) are the denominators corresponding to A370823(n).at n=20A370824