54774

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 26.at n=17A031704
• Thickened pyramidal numbers: a(n) = 2*(n+1)*n + Sum_{i=1..n} (4*i*(i-1) + 1).at n=34A050533
• Largest number that is not the sum of five n-gonal numbers.at n=40A118367
• 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), (0, 0, 1), (0, 1, -1), (1, 0, 0)}.at n=10A149858
• a(n) = 676*n^2 + 2*n.at n=8A158385
• a(n) = 324*n^2 + 18.at n=13A158590
• a(n) = 169*n^2 + n.at n=17A173275
• Number of (w,x,y,z) with all terms in {1,...,n} and w^2<=x*y*z.at n=16A212065
• Triangle read by rows. Number T(n, k) of partitions of the multiset [1, 1, 2, 2, ..., n, n] into k nonempty submultisets, for 1 <= k <= 2n.at n=36A358710
• a(0) = 0, a(1) = 1. Thereafter, a(n) = a(n-1) + a(n-2) converted to base n, read in base n+1.at n=21A380976