120149

Appears in sequences

• Numbers that are the sum of 7 positive 10th powers.at n=17A004807
• Expansion of (1+x-x^3)/((1-2*x)*(1-x^2)).at n=16A052997
• a(n) = 4*a(n-1) + 1, a(1)=7.at n=7A072261
• a(n) = (n + 2/3)*2^(n-1) - 1/2 - (-1)^(n-1)*(1/6).at n=13A127980
• Transform of A056594 by the T_{1,0} transformation (see link).at n=14A159339
• Number of 7-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=18A187381
• Rectangular array with all start numbers Mo(n, k), k >= 1, for the Collatz operation ud^(2*n-1), n >= 1, ending in an odd number, read by antidiagonals.at n=43A238476
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 395", based on the 5-celled von Neumann neighborhood.at n=16A281750
• a(n) = 4*a(n-2)+1 with initial terms 1,3,7.at n=16A283323
• Number of n X 3 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 5 neighboring 1s.at n=11A297590
• An array A of the positive odd numbers, read by antidiagonals upwards, giving the present triangle T.at n=52A347834
• a(0) = 4, a(n) = 2*a(n-1) + (-1)^n.at n=15A383953