107776
domain: N
Appears in sequences
- a(n) = 4^n mod n^4.at n=19A066608
- Numbers k such that k and k^2 use only the digits 0, 1, 5, 6 and 7.at n=16A136869
- a(n) = q^9/6+5*q^8/6+2*q^7/3-q^6/6-5*q^5/6+q^4/3 where q = n-th prime power A000961(n).at n=3A229740
- The number of P-positions in the game of Nim with up to 5 piles, allowing for piles of zero, such that the number of objects in each pile does not exceed n.at n=19A241523
- E.g.f.: (cosh(3*x) + sinh(3*x)*cosh(x)) / (cosh(x) - sinh(x)*cosh(3*x)).at n=6A245155
- a(n) = (n^9 + 5*n^8 + 4*n^7 - n^6 - 5*n^5 + 2*n^4)/6.at n=4A255501
- Haiku numbers.at n=23A321235
- a(n) = Sum_{d|n} (d+n)^n.at n=4A367506
- Numbers k with abundance 90: sigma(k) - 2*k = 90.at n=5A389703