28398241

Appears in sequences

• Sum of 4th powers of primes = 1 mod 3 dividing n.at n=72A005073
• Sum of 4th powers of primes = 1 mod 4 dividing n.at n=72A005081
• a(n) = (3*n+1)^4.at n=24A016780
• a(n) = (4n+1)^4.at n=18A016816
• a(n) = (5n + 3)^4.at n=14A016888
• a(n) = (6*n + 1)^4.at n=12A016924
• a(n) = (7*n + 3)^4.at n=10A017020
• a(n) = (8*n + 1)^4.at n=9A017080
• a(n) = (9n+1)^4.at n=8A017176
• a(n) = (10*n + 3)^4.at n=7A017308
• a(n) = (11*n + 7)^4.at n=6A017476
• a(n) = (12*n + 1)^4.at n=6A017536
• a(n) = prime(n)^4.at n=20A030514
• Squares of composite numbers k such that sigma(k) (sum of divisors of k, A000203) is a prime.at n=17A065404
• Fourth power of primes of the form 4k+1 (A002144).at n=8A080175
• Column 2 of A112070.at n=20A112084
• Numbers k such that k is the fourth power of an integer and the sum of digits of k is prime.at n=26A135554
• a(n) = A000404(n)^4.at n=25A135786
• Numbers of the form p^q^r, for p,q,r primes.at n=27A217709