37969
domain: N
Appears in sequences
- a(n) = (5^n - 3^n)/2.at n=7A005059
- Strong pseudoprimes to base 27.at n=30A020253
- Strong pseudoprimes to base 45.at n=11A020271
- Strong pseudoprimes to base 75.at n=30A020301
- Gaps of 4 in sequence A038593 (lower terms).at n=4A038647
- a(n) is the (n+1)st (n+2)-gonal number.at n=42A064808
- Least k such that the decimal representation of k*n contains only 1's and 0's.at n=28A079339
- a(n)=A088599(n)/n.at n=28A088756
- a(n)=A088599(n)/n.at n=57A088756
- Square array by antidiagonals of number of straight lines with n points in a k-dimensional hypercube with n points on each edge.at n=38A105373
- Zsigmondy numbers for a = 5, b = 3: Zs(n, 5, 3) is the greatest divisor of 5^n - 3^n (A005058) that is relatively prime to 5^m - 3^m for all positive integers m < n.at n=6A109347
- Smallest m such that m * prime(n) consists of decimal digits not greater than 1.at n=9A119483
- For n>1, a(n) = 2*a(n-1) + 15*a(n-2); a(0)=1, a(1)=1.at n=7A120612
- Number of collinear point triples in an n X n .. X n 7-dimensional cubical grid.at n=2A178286
- Left edge of the triangle A045975.at n=42A204556
- Number of digits in the decimal expansion of the number of partitions of 3^n.at n=19A248729
- MM-numbers of crossing, capturing multiset partitions (with empty parts allowed).at n=24A326259
- The number of even prime gaps g satisfying g == 2 (mod 6) out of the first 2^n even prime gaps.at n=17A341531