4198401
domain: N
Appears in sequences
- Numbers that are the sum of 4 positive 11th powers.at n=17A004815
- a(n) = (2^n + 1)^2.at n=11A028400
- Product of divisors of 2^n + 1.at n=10A069060
- a(2n) = 2*4^n-1, a(2n+1) = (2^(n+1)+1)^2; interlaces A083420 with A028400.at n=21A107663
- Maximum number of rational points on a smooth absolutely irreducible projective curve of genus 1 over the field F_2^n.at n=21A169872
- (2^p+1)^2 where p is prime.at n=4A174623
- 1/4 the number of (n+1) X 2 binary arrays with all 2 X 2 subblock sums the same.at n=22A183978
- Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=9A208556
- a(n) = 9*J(n)^2 where J(n) are the Jacobsthal numbers A001045 with J(0) = 1.at n=11A323210
- a(n) is the least perfect power > 2^n.at n=22A357751