7890481
domain: N
Appears in sequences
- Sum of 4th powers of primes dividing n.at n=52A005065
- Sum of 4th powers of odd primes dividing n.at n=52A005068
- Sum of 4th powers of primes = 2 mod 3 dividing n.at n=52A005077
- Sum of 4th powers of primes = 1 mod 4 dividing n.at n=52A005081
- a(n) = (2*n+1)^4.at n=26A016756
- a(n) = (3*n+2)^4.at n=17A016792
- a(n) = (4n+1)^4.at n=13A016816
- a(n) = (5n + 3)^4.at n=10A016888
- a(n) = (6*n + 5)^4.at n=8A016972
- a(n) = (7*n + 4)^4.at n=7A017032
- a(n) = (8*n + 5)^4.at n=6A017128
- a(n) = (9*n + 8)^4.at n=5A017260
- a(n) = (10*n + 3)^4.at n=5A017308
- a(n) = (11*n + 9)^4.at n=4A017500
- a(n) = (12*n + 5)^4.at n=4A017584
- a(n) = prime(n)^4.at n=15A030514
- Prime powers n such that both tau(n^2) and sigma(n^2) are composite numbers.at n=29A065771
- Final terms of rows of A077558.at n=15A077559
- Fourth power of primes of the form 4k+1 (A002144).at n=6A080175
- Leading diagonal of array in A111679.at n=15A111680