9863382151
domain: N
Appears in sequences
- a(0) = 1, a(1) = 2, a(n) = 4*a(n-1) - a(n-2).at n=18A001075
- Numbers k such that any group of k consecutive integers has integral standard deviation (viz. A011944(k)).at n=9A011943
- Numerators of continued fraction convergents to sqrt(12).at n=17A041016
- Numerators of continued fraction convergents to sqrt(27).at n=11A041042
- Numerators of continued fraction convergents to sqrt(48).at n=17A041082
- Numerators of continued fraction convergents to sqrt(75).at n=23A041132
- Numerators of continued fraction convergents to sqrt(108).at n=23A041194
- Numerators of continued fraction convergents to sqrt(243).at n=19A041454
- Numerators of continued fraction convergents to sqrt(300).at n=11A041564
- Numerators of continued fraction convergents to sqrt(432).at n=23A041822
- Numerators of continued fraction convergents to sqrt(507).at n=17A041968
- Numerators of continued fraction convergents to sqrt(675).at n=11A042298
- Numerators of continued fraction convergents to sqrt(867).at n=11A042674
- Numerators of continued fraction convergents to sqrt(972).at n=19A042880
- Numbers k such that k^2-1 and k^2 are consecutive powerful numbers.at n=27A060860
- Numbers n such that the Diophantine equation (x+2)^3-x^3=2*n^2 has solutions.at n=9A102344
- a(2*n) = A001570(n), a(2*n+1) = A011943(n+1).at n=17A110293
- x such that x^2 - 27*y^2 = 1.at n=6A114052
- Denominators of continued fraction convergents to sqrt(3)/2.at n=18A144536
- 256*n^9 - 576*n^7 + 432*n^5 - 120*n^3 + 9*n.at n=7A243135