221952

Appears in sequences

• Number of points of L1 norm 4 in cubic lattice Z^n.at n=24A035598
• Coordination sequence for 24-dimensional cubic lattice.at n=4A035719
• Coordination sequence for C_24 lattice.at n=2A035761
• Coordination sequence for lattice D*_24 (with edges defined by l_1 norm = 1).at n=4A035797
• Coordination sequence for diamond structure D^+_24. (Edges defined by l_1 norm = 1.)at n=4A035888
• a(n) = digit reversal of A103764.at n=17A103837
• a(n) = Sum_{k=0..n} binomial(n, floor(k/2))*2^(n-k).at n=13A127358
• Triangle, read by rows, that transforms diagonals in the table of coefficients in the successive iterations of x+x^2 (cf. A122888).at n=38A135080
• Column 2 of triangle A135080.at n=6A135083
• Averages of twin prime pairs k such that k*3 and k/3 are squares.at n=12A154671
• Triangle, read by rows, where row n equals the coefficients of y^k in R_{n-1}(y+y^2) for k=3..n, where R_n(y) is the n-th row polynomial in y for n>=3 with R_3(y)=y^3.at n=27A187120