21358

Appears in sequences

• Sum of distinct orders of degree-n permutations.at n=25A060179
• Number of reduced words of length n in the Weyl group B_7.at n=17A161716
• Number of reduced words of length n in the Weyl group B_7.at n=32A161716
• a(n) = a(n-1) + a(n-2) - [a(n-4)/4] - [a(n-5)/2] - [a(n-6)/4].at n=25A173597
• Position of the n-th prime in A253279.at n=46A255999
• Solution of the complementary equation a(n) = 3*a(n-1) + b(n-1) - 2, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=9A295135