22257

Appears in sequences

• a(1)=0, and a(n+1) is the position of first occurrence of a(n) in the decimal expansion of 1/Pi.at n=23A098319
• Numbers of the form 56+p^2 (where p is a prime).at n=34A138690
• Numbers n with property that n^2 starts and ends with 49.at n=10A159815
• Sum of first k numbers in column k of the natural number array A000027; by antidiagonals.at n=26A185787
• Number of tilings of a 3 X n rectangle using straight (3 X 1) trominoes and 2 X 2 tiles.at n=22A219968
• Expansion of Product_{i>0, j>0, k>0} 1/(1 - x^(i^2 + j^2 + k^2)).at n=54A321433
• a(n) = (4*n^3 - 6*n^2 + 20*n + 3)/3.at n=26A322597
• The number of hanging vertically stable self-avoiding walks of length n on a 2D square lattice where only the nodes have mass.at n=14A335307
• Number of ways to write n as an ordered sum of nine powers of 2.at n=25A342252
• Number of ASCII letter 'A' bytes that when compressed with zlib generate a new record longest compressed byte stream.at n=37A375585
• Expansion of g.f. x*(21 + 123*x + 129*x^2 + 4*x^3 + 129*x^4 + 123*x^5 + 21*x^6)/((1 - x)^3*(1 + x + x^2 + x^3)^2).at n=35A377166