28776

Appears in sequences

• Number of nonnegative solutions of x1^2 + x2^2 + ... + x12^2 = n.at n=14A045853
• Numbers n = concat(a,b) such that phi(n) = phi(a) * phi(b), where phi = A000010.at n=38A147619
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 0), (-1, 1, -1), (1, -1, 0), (1, 0, 1)}.at n=11A148217
• Number of planar n X n X n binary triangular grids with no more than 7 ones in any 4 X 4 X 4 subtriangle.at n=5A153532
• Number of partitions of n such that the number of parts and the smallest part are coprime.at n=38A200928
• Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 n X 2 array.at n=23A219621
• Numbers k such that there is no prime p and index j < k such that A002182(k) = p * A002182(j).at n=11A272606
• Sum of the prime parts in the partitions of n into 8 parts.at n=36A309469
• E.g.f.: Sum_{n>=0} (W(x)^n - 1)^n * x^n / n!, where W(x) = exp(x*W(x)) = LambertW(-x)/(-x).at n=6A326267