87368
domain: N
Appears in sequences
- [ (4th elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+3 positive integers congruent to 1 mod 3}.at n=24A024223
- Numbers k such that Pi^k - 1/phi is closer to its nearest integer than any value of Pi^j - 1/phi for 1 <= j < k.at n=15A080281
- Number of (n+1) X (2+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=8A235011
- Numbers k such that (115*10^k - 7)/9 is prime.at n=18A295083
- a(n) = n! * Sum_{d|n} 1/(d-1)!.at n=7A370579