29095

Appears in sequences

• Discriminants of totally complex sextic fields (negated).at n=26A023687
• Numbers k that divide 7^k + 3^k.at n=30A045586
• Threefold convolution of A004148 (the RNA secondary structure numbers) with itself.at n=12A098075
• Fibonacci-Collatz sequence: a(1)=1, a(2)=2; for n > 2, let fib = a(n-1) + a(n-2); if fib is odd then a(n) = 3*fib + 1 else a(n) = fib/2.at n=14A105801
• Integers n such that 4*10^n + 61 is prime.at n=12A110949
• Negative value of coefficient of x^(n-2) in the characteristic polynomial of a certain n X n integer circulant matrix.at n=21A127407
• a(n) is the smallest number k such that the symmetric representation of sigma(k) has n parts.at n=11A239663
• a(n) = ceiling(Pi*n^3).at n=21A247194
• Product of n and the sum of remainders of n mod k, for k = 1, 2, 3, ..., n.at n=54A256532
• a(n) is the smallest number k such that the symmetric representation of sigma(k) consists of n parts of width 1.at n=11A318843
• a(n) is the smallest number k whose symmetric representation of sigma(k) consists of n regions (or parts) and whose areas are strictly decreasing towards the diagonal.at n=11A338534
• 1 together with the square array T(n,k) read by upward antidiagonals in which T(n, k), n >= 1, is the n-th odd number j >= 3 such that the symmetric representation of sigma of j has k >= 2 parts.at n=66A346969