30383

Appears in sequences

• Strong pseudoprimes to base 58.at n=22A020284
• Number of partitions of n that do not contain 2 as a part.at n=46A027336
• a(n) = n*(5*n^2 - 3)/2.at n=23A063522
• Number of partitions of n-th composite number not containing the smallest prime factor.at n=30A091094
• Records in A111229.at n=38A111270
• A bisection of A063522.at n=11A160674
• a(n) = A002865(2*n-1)+A002865(2*n).at n=22A182845
• Composite numbers whose concatenation of their aliquot parts, in ascending order, is a palindrome.at n=41A249300
• Composite numbers whose concatenation of their aliquot parts, in descending order, is a palindrome.at n=40A249301
• Numbers of squares formed by this procedure on n-th step: Step 1, draw a unit square. Step n, draw a unit square with center in every intersection of lines of the figure in step n-1.at n=22A336288
• G.f. satisfies A(x) = 1 + x/(1 + x^3) * A(x/(1 + x^3)).at n=18A360898