29987

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 31 ones.at n=9A031799
• Decimal part of a(n)^(1/2) starts with a 'nine digits' anagram.at n=14A034277
• Number of simple unlabeled n-node graphs with 5 center nodes.at n=8A052441
• Number of partitions of n with rank 2 (the rank of a partition is the largest part minus the number of parts).at n=57A101199
• a(n) = 68*n^2 - 1.at n=20A158730
• Numbers n such that phi(n) = phi(n+12) and n is not divisible by 2.at n=34A217141
• Numbers such that the sum of the reverse of their aliquot parts is equal to the reverse of the sum of their aliquot parts.at n=38A278948
• Triangle read by rows: T(n,k) is the number of simple connected graphs on n nodes with k center nodes.at n=40A294525
• Sum of the prime parts in the partitions of n into 10 parts.at n=36A309471
• a(n) = 17*n^2 - 1.at n=42A321180