46597

Appears in sequences

• Numbers that define integer Heronian triangles [prime(a(n)), prime(a(n)+1), A068965(n)] with area A068966(n).at n=28A068964
• a(1)=2; for n>1, a(n)=2*a(n-1)-1 if that number is composite, a(n)=a(n-1)+1 otherwise.at n=23A081869
• Least j > 1 such that j^2 = (4*n^2 + 2)*(k^2) + (4*n^2 + 2)*k + 1.at n=22A106231
• a(n) = 5 + floor( Sum_{j=1..n-1} a(j)/3 ).at n=32A120151