30866

Appears in sequences

• Smallest composite which when sum of prime factors is repeatedly subtracted reaches a prime after n iterations.at n=36A053093
• a(n+1) = a(n) + (if a(n) is odd then (next odd square) else (next even square)), a(0) = 1.at n=29A116955
• Numerator of Euler(n, 2/25).at n=4A156966
• Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero with no three beads in a row equal.at n=27A208946
• Number of orbits of Aut(Z^7) as function of the infinity norm n of the representative lattice point of the orbit, when the cardinality of the orbit is equal to 80640.at n=24A266396
• Numbers k such that k^2 + {1,3,7,13} are prime.at n=8A356109
• Expansion of 1/sqrt(1 - 4*x*(1-x)^4).at n=10A361817