20372
domain: N
Appears in sequences
- Trajectory of 13 under the '13x+1' map.at n=11A057684
- Maximal term in trajectory of P under the 'Px+1' map, where P = n-th prime, or -1 if no such term exists.at n=4A057689
- Number of ways writing 2^n as a sum of a prime and a nonprime.at n=18A062305
- Number of two-rowed partitions of length 4.at n=32A070557
- Sums of squares of primitive roots of primes.at n=15A089453
- Number of nX3 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order.at n=11A240644
- Numbers n such that Bernoulli number B_{n} has denominator 690.at n=35A272186
- Number of minimum total dominating sets in the n-antiprism graph.at n=43A302652
- Multiples of 1852.at n=11A303272
- Numbers that are the sum of eight fourth powers in exactly eight ways.at n=23A345840
- Index where n first appears in A381658.at n=57A381659