20632

Appears in sequences

• Truncated cube numbers.at n=9A005912
• Number of primitive (period n) step cyclic shifted sequence structures using a maximum of three different symbols.at n=14A056440
• a(n) = round(e^(Pi*sqrt(n))).at n=10A056580
• a(0)=1; a(n) = sigma_2(n) + sigma_3(n).at n=26A092344
• Number of permutations of 2 copies of 1..n with all adjacent differences <= 1 in absolute value.at n=17A177282
• Number of square binary words: binary words of length 2n obtained by self-shuffling.at n=8A191755
• L.g.f.: Sum_{n>=1} (x^n/n) * Product_{d|n} (1 + d*x^n).at n=59A205479
• Number of (n+2) X (6+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0, 2, 4, 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0, 2, 4, 6 or 7.at n=2A252431
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 4 6 or 7.at n=30A252433
• Number of (3+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 4 6 or 7.at n=5A252436
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 185", based on the 5-celled von Neumann neighborhood.at n=29A270636
• G.f.: Sum_{k>=1} x^(2*k-1)/(1+x^(2*k-1)) * Product_{k>=1} 1/(1-x^k).at n=34A305123
• Number of integer compositions of n that are the first sums of some composition with all parts > 1.at n=41A391235