88580
domain: N
Appears in sequences
- Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 7 (most significant digit on right).at n=13A061960
- Number of 0..n arrays x(0..5) of 6 elements with zero 5th difference.at n=14A200157
- Number of nX4 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.at n=4A230395
- Number of nX5 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.at n=3A230396
- T(n,k)=Number of nXk 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.at n=31A230398
- T(n,k)=Number of nXk 0..4 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero.at n=32A230398
- Number of partitions p of n that do not include (min(p) + max(p))/2 as a part.at n=45A238481
- a(0) = 0, a(1) = 1, for n > 1, a(n) = a(n-1) + a(n-A002487(n)).at n=32A283474
- First differences of A283474.at n=35A283479
- Numbers k whose decimal representation ends with that of pi(k) (where pi denotes the prime counting function A000720).at n=19A306572