30366

Appears in sequences

• Numbers n such that 105*2^n-1 is prime.at n=40A050578
• Number of partitions of the n-th prime into integers <= n.at n=12A092298
• Weight distribution of [64,18,22] extended binary primitive BCH (or XBCH) code.at n=16A109488
• Weight distribution of [64,16,24] extended binary primitive BCH (or XBCH) code.at n=8A147632
• Number of distinct (unordered) pairs of partitions of a 9-element set that have Rand distance n.at n=25A192102
• Number of length-n 0..3 arrays connected end-around, with no sequence of L<n elements immediately followed by itself (periodic "squarefree"), and new values introduced in order 0..3.at n=13A215396
• Number of length 1+3 0..n arrays with some pair in every consecutive four terms totalling exactly n.at n=16A245951
• Length of shortest prefix of the Kolakoski sequence K (A000002) containing all blocks of length n that appear in K.at n=42A283511
• Triangle read by rows: T(n,k) is the number of permutations of k elements from [1..n] where adjacent values cannot be consecutive modulo n.at n=52A338838
• Expansion of e.g.f. exp(x^5/(120 * (1-x))).at n=10A361547
• Number of ways to choose an integer partition of each part of an integer composition of n (A055887) such that the minima are identical.at n=13A374704
• Expansion of e.g.f. 1 / (1 - x^2 * (exp(x) - 1))^3.at n=7A375663