57273

Appears in sequences

• Concatenation of n, n+1, n+2 divided by 3.at n=17A074991
• Sum_{0<j<k<=n} s(k)-s(j), where s(j)=A002620(j) is the j-th quarter-square.at n=32A206806
• Antidiagonal sums of the convolution array A213841.at n=16A213843
• Number of ways to tile an n X n X n triangular area with two 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-8) of 1 X 1 X 1 tiles.at n=17A286437
• Number of 2 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 2 neighboring 1s.at n=9A297507
• Numbers k such that 351*2^k+1 is prime.at n=40A323032