49484
domain: N
Appears in sequences
- Triangle T(n,k) is the number of restricted growth strings (RGS) of set partitions of {1..n} that have an increase at index k (1<=k<n).at n=44A056861
- a(n) = (1/2)*(Bell(n+2)-Bell(n+1)+Bell(n)).at n=8A087649
- a(n) = 100*n^2 - 151*n + 57.at n=22A157626
- Expansion of psi(x^2) * phi(x^7) / (f(-x) * f(-x^7)) in powers of x where phi(), psi(), f() are Ramanujan theta functions.at n=34A193826
- 1/4 of the number of (n+1) X 2 0..3 arrays with every 2 X 2 subblock having one, two or three distinct clockwise edge differences.at n=3A210348
- 1/4 the number of (n+1)X5 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.at n=0A210351
- T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.at n=6A210355
- T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences.at n=9A210355
- Numbers that are the sum of an emirp and its reversal in more than one way.at n=40A345408