21614

Appears in sequences

• Coordination sequence for alpha-Mn, Position Mn1.at n=38A009950
• Numbers k such that 175*2^k+1 is prime.at n=26A032464
• a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = n - 1 - 2^p and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2, and a(3) = 1.at n=16A049902
• 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, 0, 1), (-1, 1, 1), (1, -1, 0), (1, 1, -1), (1, 1, 0)}.at n=8A149482
• Number of n X 3 binary arrays with all 1s connected, a path of 1s from top row to bottom row, and no 1 having more than two 1s adjacent.at n=10A163715
• Number of standard Young tableaux with n cells such that the lengths of the first and the last row differ by 5.at n=5A244299
• Squarefree numbers k such that the sum of the distinct prime factors of k is twice the difference between the largest and the smallest prime factors of k.at n=23A324210
• Number of ways to split an integer partition of n into contiguous subsequences with strictly increasing sums.at n=30A336134
• Number of integer sequences of length n whose Gilbreath transform is (1, 1, ..., 1).at n=7A363003
• Number of polyforms with n cells on the faces of a deltoidal icositetrahedron up to rotation and reflection.at n=14A383804