45620
domain: N
Appears in sequences
- a(n) = Sum_{k<=n} A007955(k) * A000027(k) = Sum_{k<=n} A007955(k) * k, where A007955(m) = product of divisors of m.at n=15A174935
- Triangle read by rows, coefficients of the Swiss-Knife median polynomials M_{n}(x) in descending order of powers.at n=33A213736
- Number of (n+5) X 8 0..1 matrices with each 6 X 6 subblock idempotent.at n=14A224572