20322

Appears in sequences

• Smallest number with persistence n for the sort-and-subtract-sequence.at n=22A065641
• The indices of cubes (of primes) in the 3-almost primes.at n=13A128302
• G.f. A(x) satisfies: 1/(1-x) = Product_{n>=1} A( x^n - x^(n+1) ).at n=11A268648
• Positive even numbers which are neither of the form p + 2^m + 1 nor of the form p + 2^m - 1 with p prime.at n=31A270446
• G.f.: A(x) = Sum_{n=-oo..+oo} (x - x^n)^n.at n=106A290003
• p-INVERT of the positive integers, where p(S) = 1 - 2*S^2.at n=9A290904
• Sum over all partitions of n into distinct parts of the bitwise OR of the parts.at n=38A306924
• Triangle read by rows: T(n,k) is the number of ordered pairs of n-permutations with exactly k common double descents, n>=0, 0<=k<=max{0,n-2}.at n=27A334257
• Number of integer partitions of n that have an even number of parts and cannot be partitioned into distinct pairs of not necessarily distinct parts.at n=46A338915