39814

Appears in sequences

• Self-convolution of array T given by A026648.at n=8A026971
• Expansion of 2*(1-x)*(2*x^2+4*x+1) / (1-x-x^2)^2.at n=15A271786
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) - 1, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=19A293317
• Number of permutations p of [n] such that |p(i) - p(i-1)| is in {1,3} for all i from 2 to n.at n=21A302118
• Permutation rank of the initial state S of length n in an RC4-like Key Scheduling Algorithm with key comprising numbers 1 to n.at n=7A374720