70228

Appears in sequences

• Numbers k such that 195*2^k+1 is prime.at n=34A032474
• Expansion of 1/sqrt(1+4*x+16*x^2).at n=9A116091
• 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), (0, 1, -1), (1, 0, 1), (1, 1, 1)}.at n=9A150389
• Number of 14X2 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 14 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=13A192715
• Number of length-n binary words such that every conjugate (cyclic shift) is rich.at n=21A306316