28377
domain: N
Appears in sequences
- Numbers k such that k^2+k+2 is a palindrome.at n=24A027712
- a(n) = floor(sqrt(3)*2^(n-1)).at n=14A094386
- a(n) = 13 + floor(Sum_{j=1..n-1} a(j)/2).at n=19A120140
- Numbers n such that n!8-2 is prime.at n=57A204664
- Floor(sqrt(3*2^n)).at n=28A221718
- Number of (n+2) X 9 0..2 matrices with each 3 X 3 subblock idempotent.at n=13A224605
- Number of distinct lines passing through at least three points in a triangular grid of side n.at n=37A234248
- Volume of right regular hexagonal pyramid with height and side lengths n, rounded down.at n=31A234729
- Sum of the squarefree parts of the partitions of n into 5 parts.at n=40A309480
- Index of first occurrence of n in A364197.at n=48A364198
- Integer part of (2^(n - 1) - 1)*sqrt(3) + 1.at n=15A374148
- Triangle read by rows: the n-th row gives the least sequence of n consecutive numbers with the same number of divisors.at n=18A376557