29200

Appears in sequences

• s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ], s = A001950 (upper Wythoff sequence).at n=35A025122
• Numbers having four 4's in base 9.at n=8A043472
• Trisection of A007294.at n=42A073470
• T(n, m) = Sum_{i=0..10} floor(Eulerian(n+1, m)/2^i).at n=38A174033
• T(n, m) = Sum_{i=0..10} floor(Eulerian(n+1, m)/2^i).at n=42A174033
• a(n) = 73*n^2.at n=20A174334
• Numbers n such that 30n+{11, 13, 17, 19, 23} are 5 consecutive primes.at n=31A182279
• Number a(n,k) of positions (cyclic permutations) of circular permutations of [n] with exactly k (unspecified) increasing or decreasing modular runs (3-sequences), with clockwise and counterclockwise traversals counted as distinct; triangle a(n,k) read by rows, 0<=k<=n.at n=58A235943
• Palindromic numbers in bases 3 and 9 written in base 10.at n=54A259386
• Triangle read by rows: T(n, n-k) = number of k-faces of the concertina n-cube.at n=24A300700
• Non-palindromic numbers n such that n * reverse(n) is a square and n and reverse(n) do not have the same number of digits.at n=42A322835
• Number of regions in a regular n-gon with all diagonals drawn whose edges all have a different number of facing edges.at n=47A350718
• Numbers that can be written as a^2 + 3*b^2 for some a, b in A155716 and also as c^2 + 6*d^2 for some c, d in A092572.at n=23A380295
• Conductor of elliptic curve y^2 = x^3 - n*x - n.at n=24A387891
• a(n) = A326127(n) * A389078(n).at n=47A388979
• Square array A(n,k) = A388979(A388981(n, k)), read by descending antidiagonals.at n=15A389169