28705
domain: N
Appears in sequences
- Used by Polya in calculating A000598.at n=17A036676
- Pisot sequence L(3,8).at n=9A048579
- a(0) = 5, a(1) = 7; for n>1, a(n) = a(n-1)+a(n-2)-(2n-2).at n=22A089061
- Sylvester dividends for Pell numbers.at n=32A105606
- Numbers k such that 2^k + 27 is prime.at n=39A157007
- Numbers n such that the decimal equivalent of the binary reflected Gray code representation of n is a palindromic prime.at n=46A281382
- Number of edges in the n-Pell graph.at n=10A364553