26570
domain: N
Appears in sequences
- a(1) = 7; a(n+1) = a(n)-th nonprime, where nonprimes begin at 1.at n=40A025006
- Numbers k such that k | 6^k + 5^k + 4^k + 3^k + 2^k.at n=30A057256
- Numbers that contain as proper substrings every maximal prime power dividing them.at n=26A059401
- a(n) = prime(n)^2 + 1.at n=37A066872
- Number of partitions of n into parts with at most one 1 and at most one 2.at n=49A121081
- Least b > p_n^2 such that [p_1^2,p_2^2,...,p_n^2] in base b is prime, where p_j denotes the j-th prime.at n=36A224197
- Number of partitions of n such that (least part) = (multiplicity of greatest part).at n=40A240180
- The smallest numbers of every class in a classification of positive numbers (see comment).at n=39A247395
- Least integer k>1 such that sqrt(k)/log(k) exceeds n.at n=15A262058
- Numbers that cannot be partitioned into two or more distinct even-valued terms or distinct odd-valued terms of the sequence.at n=46A279953
- Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n) + 1, where a(0) = 2, a(1) = 3, b(0) = 1, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=17A295958