85491

Appears in sequences

• Numbers n such that s=n^2 gives prime quadruples (30s+11, 30s+13, 30s+17, 30s+19).at n=15A087772
• Triangular numbers for which the sum of the digits equals the sum of the digits of the next triangular number.at n=20A117511
• Triangular numbers for which the sum of the digits is a cube.at n=27A117803
• Numbers n such that n and n+-1 have 4 distinct prime factors.at n=23A168628
• Least number having n orderless representations as p^2 + q^2 + r^2, where p, q, and r are primes.at n=29A214512
• Triangular numbers representable as x*y+x+y such that x and y are triangular numbers, x>=y>0.at n=27A259745
• Triangular numbers representable as x*y+x+y such that x and y are triangular numbers, x>=y>1.at n=22A259746
• Number of (n+2) X (4+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001.at n=6A260244
• Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001001.at n=3A260247
• Numbers k such that k and k+1 both have the prime signature (2,1,1,1) (A189982).at n=29A336658
• Numbers that start a run of four consecutive triangular numbers with four distinct prime factors.at n=18A349773