22836

Appears in sequences

• Expansion of 1 / Product_{k>=1} (1-x^k)^(k+1).at n=14A005380
• a(n) = T(2n+1,n+2), T given by A026736.at n=7A026855
• Number of partitions of n that do not contain 7 as a part.at n=39A027341
• a(n) = 1331*n - 1122.at n=17A157441
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+2737)^2 = y^2.at n=41A201916
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 805", based on the 5-celled von Neumann neighborhood.at n=26A273604
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1)^2, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=14A296252
• Number of excursions of length n with Motzkin-steps avoiding the consecutive steps UU, HH and DU.at n=22A329694
• a(n) = Sum_{1 <= i, j, k, l <= n} gcd(i,j,k,l).at n=11A344523
• With p = prime(n), a(n) is the least composite k such that A001414(k) = p and k+p is prime, or 0 if there is no such k.at n=42A346501