26040609
domain: N
Appears in sequences
- Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*7^j.at n=29A038297
- Numbers with 39 divisors.at n=23A175748
- (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (3,1,3,1,3,1,3,1,...).at n=24A203231
- Smallest number having exactly n divisors ending with 3 or 7.at n=18A331082
- Numbers k such that the sum of the distinct digits of k is equal to the product of the prime divisors of k.at n=38A357263
- a(n) is the least number with exactly n divisors of the form 4*k+3.at n=19A364585
- Triangle read by rows: T(n,k) is the number of occurrences of the periodic substring (0011)^k in the periodic string (000111)^n.at n=34A373628