18877

Appears in sequences

• Let a_0 = 1 and for n > 0, let a_n be the smallest positive integer not already in the sequence such that (a_0 + a_1 x + a-2x^2 + ....)^(1/3) has integer coefficients. (Hanna's A083349). Let f(n) = n th term in the present sequence. Then a_0 + a_1 x + a_2 x^2 + ... = (1-x)^f(1) (1-x^2)^f(2) (1-x^3)^f(3) ....at n=31A110879
• 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), (-1, -1, 1), (0, 1, -1), (1, 0, -1), (1, 1, 1)}.at n=8A149666
• Number of ON states after n generations of cellular automaton based on f.c.c. lattice with each cell adjacent to its twelve neighbors.at n=28A151776
• Expansion of x*(1 + x^2 - x^3) / ( (1-x)*(1-x-x^4) ).at n=29A168639
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 107", based on the 5-celled von Neumann neighborhood.at n=29A270166
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 299", based on the 5-celled von Neumann neighborhood.at n=29A271154
• Andrews's shadow difference function D_3(q).at n=41A275633
• Number of minimal total dominating sets in the n-dipyramidal graph.at n=34A298823
• MM-numbers of crossing set partitions.at n=19A324324
• Numbers which can written in exactly four ways as a sum of two distinct nonzero pentagonal numbers.at n=1A333014