34939

Properties

Appears in sequences

• Powers of sqrt(5) rounded to nearest integer.at n=13A017920
• Powers of sqrt(5) rounded up.at n=13A017921
• Powers of fourth root of 5 rounded to nearest integer.at n=26A018058
• Powers of fourth root of 5 rounded up.at n=26A018059
• Primes p that have exactly three primitive roots that are not primitive roots mod p^2.at n=16A060519
• Primes which remain prime after one and after two applications of the rotate-and-add operation of A086002.at n=30A086003
• Triangle T, read by rows, where T(n,k) = [T^(2^k)](n-k,0) * (2^k)^(n-k) for n>=k>=0 such that row n of the 2^(n-1)-th root of T consists solely of integers given by: [T^( 1/2^(n-1) )](n,k) = (2^k)^(n-k) for n>=0.at n=15A134049
• Column 0 of triangle A134049.at n=5A134050
• Primes having only {3, 4, 9} as digits.at n=30A199349
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 2w+x+y>2.at n=21A211619
• Values of x in A216363.at n=11A216382
• Numbers k such that antisigma(k) contains k as a substring.at n=11A255968
• Number of amicable pairs with lesser member at most 2^n.at n=45A290985
• Primes p whose last digit is the same as that of both its predecessor prime and its successor prime.at n=34A298075
• First of four consecutive primes with product p and sum s such that |s^2-p| and s^2+p are both prime.at n=19A391121
• Prime numbersat n=3728