97241

Properties

Appears in sequences

• Half-quartan primes: primes of the form p = (x^4 + y^4)/2.at n=25A002646
• Numbers k such that the first k digits of the Golden Ratio form a prime.at n=4A064119
• Let M = the 4 X 4 matrix [0 1 0 0 / 0 0 1 0 / 0 0 0 1 / -1 -1 3 2]. Set seed vector = [1 1 1 1] = first row, then take M*[1 1 1 1] = [1 1 1 3] then M * [1 1 1 3], etc. Sequence gives terms in rightmost column.at n=11A091650
• Primes of the form (k^4 + 1)/2.at n=6A096170
• Largest prime factor of n^4 + 1.at n=20A096172
• Indices of primes in sequence defined by A(0) = 39, A(n) = 10*A(n-1) - 41 for n > 0.at n=19A101834
• Primes of the form 8*n^2 + 4*n + 1.at n=33A102130
• Numbers k such that phi(k) + k is a fourth power.at n=32A114072
• Primes of the form 50n^2 + 10n + 1.at n=18A154428
• a(n) = ceiling((n+1)^4/2).at n=20A171714
• a(n) = ((2*n+1)^4+1)/2.at n=10A175110
• Largest number of the form C(n,x) + C(n,y) + C(n,z) where x + y + z = n.at n=18A209083
• Primitive prime factors of the cyclotomic polynomial sequence Phi(8,k) in the order in which they occur.at n=23A256145
• Number of partitions of n^4 into at most two parts.at n=21A274323
• Primes p such that 2p-1 is a square and 2p+1 is also prime.at n=11A386995
• Prime numbersat n=9356