75320
domain: N
Appears in sequences
- Sum(prime(k)*10^(k),k=1..n).at n=4A101310
- Numbers n with following property: suppose n^6 = d1 d2 d3 ...dk in decimal; then d1! + d2! + ... + dk! is a square.at n=30A130688
- Number of scalene triangles, distinct up to congruence, on an n X n grid (or geoboard).at n=25A190313
- Theta series of direct sum of 2 copies of 4-dimensional lattice QQF.4.i.at n=25A212817
- Number of (n+2) X (1+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 2 3 4 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 2 3 4 6 or 7.at n=14A252271
- Expansion of Product_{k>=1} ((1 + x^k) * (1 + 3*x^k)).at n=22A266822
- Nonunitary weird numbers: numbers that are nonunitary abundant but not nonunitary pseudoperfect.at n=31A327948