30980

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 88.at n=3A031766
• Numbers whose set of base-13 digits is {1,4}.at n=32A032825
• Number of partitions satisfying cn(1,5) + cn(4,5) <= cn(0,5) + cn(2,5) + cn(3,5).at n=42A039866
• Interprimes which are of the form s*prime, s=20.at n=28A075295
• a(n) = 1000*n - 20.at n=30A157515
• Number of partitions of n the largest part of which, call it m, appears once, m-1 appears at most twice, m-2 appears at most thrice, etc.at n=41A244393
• Number of (1,1) pairs occurring at depth 3n of the Fibonacci tree.at n=6A305573