57644
domain: N
Appears in sequences
- Numbers k such that 2^k + 27 is prime.at n=40A157007
- Triangle read by rows. Polynomials based on sums of Moebius transforms.at n=42A177977
- Numbers N such that concatenation of N, N, and x generates a prime for x=1 and x=3 and x=7 and x=9.at n=9A210515
- a(n) = 4*3*2*1 + 8*7*6*5 + 12*11*10*9 + 16*15*14*13 + ... + (up to the n-th term).at n=17A319868
- Numbers that are the sum of ten fifth powers in three or more ways.at n=26A345635
- Numbers that are the sum of ten fifth powers in exactly three ways.at n=22A346348