3473408
domain: N
Appears in sequences
- a(n) = 2^n*(binomial(n,2) + 1).at n=15A052481
- a(n) = (3*n-1) * 2^(n-2).at n=17A053220
- Numbers with 34 divisors.at n=14A175744
- (n-1)-st elementary symmetric function of the first n terms of (1,2,1,2,1,2,1,2,1,2,...)=A000034.at n=34A203150
- Number of permutations of length n containing exactly 1 occurrence of 123 and 2 occurrences of 132.at n=17A224289
- Number T(n,k) of endofunctions f on [n] satisfying f^3(i) = i for all i in [k]; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=37A245958
- a(n) = prime(n) * 2^n.at n=15A265127