894661

Appears in sequences

• a(n) = n^4 - n^3 + n^2 - n + 1.at n=31A060884
• 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=30A241523
• a(n) = 1 - sigma(n) + sigma(n)^2 - sigma(n)^3 + sigma(n)^4.at n=15A259410
• a(n) = 1 - sigma(n) + sigma(n)^2 - sigma(n)^3 + sigma(n)^4.at n=24A259410