79401

Appears in sequences

• Triangular numbers T such that T+10 is the next prime after T.at n=14A129540
• Numbers k with property that 19*k + {2,4,8,10} are two pairs of consecutive twin primes.at n=15A152926
• a(n) = 58*n^2 - 1.at n=36A158668
• Composite squarefree numbers k such that p+1 divides k-1 for any prime p dividing k.at n=12A225711
• Distinct-digit numbers that are the concatenation of m and prime(m) for some number m.at n=31A255729
• Triangular numbers representable as x*y+x+y such that x and y are triangular numbers, x>=y>0.at n=26A259745
• Triangular numbers representable as x*y+x+y such that x and y are triangular numbers, x>=y>1.at n=21A259746
• Triangular numbers that are repdigits with length > 2 in some base.at n=28A274084
• G.f.: Product_{m>0} (1 + x^m + 2!*x^(2*m) + 3!*x^(3*m)).at n=35A289485