23113
domain: N
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 71.at n=18A020410
- "BHK" (reversible, identity, unlabeled) transform of 0,1,1,1...at n=24A032090
- Numbers k such that 1000k+1, 1000k+3, 1000k+7, 1000k+9 are all primes.at n=9A064962
- Third row of Pascal-(1,5,1) array A081580.at n=36A081589
- Hypotenuse C of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q^2-p^2, c=q^2+p^2, b=2*p*q, s=a+b+c, s-+1 are primes.at n=14A155175
- Numbers k such that k + (sum of digits of k) and k + (product of digits of k) contain the same distinct digits of k.at n=18A248718
- Numbers k such that all of k, k+1 and k+2 are the sums of consecutive squares.at n=8A368590
- Centered square numbers which are semiprime.at n=46A371016