26789
domain: N
Appears in sequences
- a(n) = Sum_{k=0..n-3} T(n,k)*T(n,k+3), T given by A026736.at n=6A027218
- Look at the first 10 digits of the sequence: they are all different. The same for the next 10. And the next 10, etc. This sequence is the slowest increasing one with that property.at n=51A097912
- Append three digits, each increasing by one modulo 10 from the last digit of the nonnegative integers. 0 -> 123, 1 -> 1234 2 -> 2345, ... , 9 -> 9012, 10 -> 10123, etc.at n=26A167231
- a(n) = 2^(prime(n)-1) mod prime(n)^2.at n=41A196202
- Smallest number with n = sum of distinct digits in decimal representation, cf. A217928.at n=32A227378
- Numbers that set a new integer record for the ratio between the product and the sum of their digits.at n=28A240520
- Numbers k such that (82*10^k + 449)/9 is prime.at n=22A282809
- G.f.: Sum_{k>=0} x^(k^2) * Product_{j=1..k} ((1 + x^j)/(1 - x^j))^2.at n=25A376854