101360
domain: N
Appears in sequences
- a(n) = S3(n,2), where S3(n, t) = Sum_{k=0..n} k^t *(Sum_{j=0..k} binomial(n,j))^3.at n=4A089670
- Numbers <= 10^6 with valid Luhn mod 10 check digit, sorted first by check digit, then lexicographically.at n=15A249855
- Number of subsets of {1..n} containing n such that every ordered pair of distinct elements has a different quotient.at n=20A325868