20852
domain: N
Appears in sequences
- Partial sums of A024810(n) = floor(2^(n+1)/Pi).at n=13A172265
- Sum of the first k-1 numbers in the k-th column of the natural number array A000027, by antidiagonals.at n=26A185788
- Records in A087669.at n=35A192230
- Numbers whose arithmetic derivatives are a permutation of their digits.at n=32A225902
- Number of partitions of 2n into distinct parts < n.at n=34A231429
- Partial sums of A243980.at n=25A244050
- a(n) = 164*2^n - 140.at n=7A305166
- Number of words of length n, over the alphabet {a,b,c}, which have an odd number of a's and the number of b's plus the number of c's is less than or equal to 3.at n=26A342159
- Numbers that are the sum of eight fourth powers in nine or more ways.at n=17A345584
- Numbers that are the sum of eight fourth powers in exactly nine ways.at n=10A345841