27111
domain: N
Appears in sequences
- Sum of squares of first n positive integers congruent to 1 mod 3.at n=20A024215
- a(n) = A168174(n)-10^12.at n=32A168248
- Numbers k such that 3^k + 32 is prime.at n=25A219048
- Number of squares of all sizes in 3*n*(n+1)/2-ominoes in form of three-quarters of Aztec diamonds.at n=40A258440
- Squares where A323809 gets stuck.at n=16A323813
- a(n) is the smallest composite number obtained by appending one or more 1's to n.at n=26A358154
- Expansion of (1/x) * Series_Reversion( x / ( (1+x)^3 * (1+2*x)^3 ) ).at n=4A379522