151286

Appears in sequences

• Each term k provides a value of (sum-of-digits of 5^k)/k that is closer to Pi than the previous value.at n=17A119666
• Number of terms of A069090 with exactly n digits.at n=6A276707
• Number of ways to choose a set of n nonempty subsets of {1..n} such that it is possible to choose a different element from each.at n=5A368601
• Number of maximal subsets of {1..n} such that it is possible to choose a different binary index of each element.at n=31A370640
• Number of maximal subsets of {1..n} such that it is possible to choose a different binary index of each element.at n=32A370640
• Number of maximal subsets of {1..n} containing n such that it is possible to choose a different binary index of each element.at n=32A370641