68719476737
domain: N
Appears in sequences
- Numbers whose cube is palindromic in base 8.at n=19A046239
- a(n) = n*4^n + 1.at n=16A050915
- a(n) = 4^n + 1.at n=18A052539
- a(n) = 8^n + 1.at n=12A062395
- Related to random walks on the 4-cube.at n=19A092896
- a(n) = (-1)^n * coefficient of x^n in Sum_{k>=1} x^(k-1)/(1+4*x^k).at n=18A101562
- a(n) = 8^n + 1 - 0^n.at n=12A103459
- Row sums of A123162.at n=19A123166
- a(n) = (2^0)*(2^1)*(2^2)*(2^3)...(2^n)+1 = 2^T_n+1 (cf. A000217).at n=8A126884
- a(n) = 3*a(n-1) + 4*a(n-2) for n>1, a(0)=2, a(1)=3.at n=18A201455
- Half the number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having exactly two distinct clockwise edge differences.at n=22A209530
- Half the number of (n+1)X8 0..2 arrays with every 2X2 subblock having exactly two distinct clockwise edge differences.at n=7A209533
- Composites of the form 2^n-1 or 2^n+1 that are non-multiples of 3.at n=23A222588
- a(n) = 64^n + 1.at n=6A228081
- a(n) = 2^phi(n)+1 = A066781(n)+1.at n=36A243305
- Permutation of natural numbers: a(n) = A005941(A227413(n)).at n=43A246366
- Odd numbers k such that tau(k-1) is a prime.at n=11A278741
- Numbers of the form 2^phi(m) + 1, where phi = A000010 = Euler totient function.at n=15A281623
- Numbers k such that k^2 + 1 divides 2^k + 8.at n=21A319245
- Numbers in base 10 that are palindromic in bases 2, 4, 8, and 16.at n=20A319598