27303
domain: N
Appears in sequences
- Numbers n such that (n+j) mod (2+j) = 1 for j from 0 to 5 and (n+6) mod 8 <> 1.at n=32A096024
- a(n) = (5*2^n - 2*(-1)^n - 9)/3.at n=13A173078
- a(n) = a(n-2)+a(n-4); a(1)=a(4)=101, a(2)=a(3)=10.at n=28A180236
- 30-gonal pyramidal numbers: a(n) = n*(n+1)*(28*n-25)/6.at n=18A256650
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 3", based on the 5-celled von Neumann neighborhood.at n=34A269912
- Relative of Hofstadter Q-sequence: a(n) = max(0, n+27298) for n <= 0; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) for n > 0.at n=6A283888
- a(1) = a(2) = 1; a(n) = ( Sum_{i|(n-1)} a(i) ) + Sum_{j|(n-2)} a(j).at n=19A293636