221322261600
domain: N
Appears in sequences
- Numbers k such that k and k+1 are powerful numbers.at n=15A060355
- Powerful numbers of the form k^2 - 1.at n=12A060859
- X-values of solutions to the equation X*(X + 1) - 6*Y^2 = 0.at n=12A132596
- a(n) = -(sin(2*n*arccos(sqrt(3))))^2.at n=6A173115
- Smaller of a pair of numbers (m, m+1) such that both are products P of composite prime powers with omega(P) > 1.at n=11A358174