30630

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 70.at n=4A031748
• f(f(n+1))-f(f(n)), where f(m) = binary partition(m) = A000123(m).at n=10A111414
• Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 2 ones in any 4 X 4 X 4 subtriangle.at n=20A153916
• a(n) = 25*n^2 + 5.at n=34A158445
• Number of binary strings of length n with equal numbers of 00001 and 01011 substrings.at n=16A164200
• Number of 4-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.at n=24A187299
• Expansion of Product_{k>=1} (1+x^k)^(Fibonacci(k)).at n=18A261050
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 433", based on the 5-celled von Neumann neighborhood.at n=34A272147
• Number of one-sided arrangements of n pseudo-circles in the affine plane.at n=5A288563
• Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=17A297886
• Triangular array read by rows. T(n,k) is the number of partial functions on [n] with index k, n=0 implies k=1, otherwise n >= 1, 1 <= k <= n.at n=18A341093