52200625

Appears in sequences

• a(n) = (3*n+1)^4.at n=28A016780
• a(n) = (4n+1)^4.at n=21A016816
• a(n) = (5n)^4.at n=17A016852
• a(n) = (6*n + 1)^4.at n=14A016924
• a(n) = (7*n + 1)^4.at n=12A016996
• a(n) = (8*n + 5)^4.at n=10A017128
• a(n) = (9*n + 4)^4.at n=9A017212
• a(n) = (10*n + 5)^4.at n=8A017332
• a(n) = (11*n + 8)^4.at n=7A017488
• a(n) = (12*n + 1)^4.at n=7A017536
• RF(5): refactorable numbers with smallest prime factor 5.at n=5A120320
• Numbers with 25 divisors.at n=24A137488
• Numbers with prime factorization p^4*q^4.at n=23A189991
• Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=11A208119
• Higher powers that are sums of two distinct higher powers.at n=21A226777
• Squares k such that phi(k) is a cube.at n=23A358051