1392640

Appears in sequences

• a(n) = 2^(n-3)*(n+2)*(n+3)*(n+4)/3.at n=13A080930
• Expansion of x/((1+4x)(1-8x)).at n=8A091904
• Terms of A181666 of the form 3*k+1.at n=41A172126
• a(n) = n^4*(n-1)*(n+1)/12.at n=15A208954
• Values of A007692(n) that are not of the form x^2 + y^2 + z^2 where x, y, z are nonzero integers.at n=14A273123
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 35", based on the 5-celled von Neumann neighborhood.at n=20A278346
• Consider the Post tag system defined in A284116; a(n) = number of binary words of length n which terminate at the empty word.at n=21A289670