18033

Appears in sequences

• T(n,n+2), array T given by A047000.at n=8A047007
• Integers n such that the number of digits in n! is a cube.at n=18A056851
• 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, 0), (-1, 0, 0), (0, -1, 1), (1, -1, -1), (1, 1, 0)}.at n=9A149120
• a(n) = A170803(n-1) + 2, with a(0) = 1, a(1) = 2.at n=22A170805
• a(n) = number of 7-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..62].at n=27A178876
• Number of distinct values of the sum of 5 products of three 0..n integers.at n=15A225262
• Triangular array of numbers of 2-polymatroids of rank k on n unlabeled points, for n>=0, 0<=k<=2n.at n=41A256156
• Triangular array of numbers of 2-polymatroids of rank k on n unlabeled points, for n>=0, 0<=k<=2n.at n=43A256156
• G.f.: Product_{k>=1} (1 + x^(k^3)) / (1 - x^k).at n=32A280278
• Number of ways to fill a matrix with the parts of a strict integer partition of n.at n=24A323301
• a(n) is the least integer k such that 1/(Sum_{j=1..n} 1/phi(k*j)) is an integer.at n=25A341810
• a(n) is the least integer k such that n/(Sum_{j=1..n} 1/phi(k*j)) is an integer.at n=25A341813