31010
domain: N
Appears in sequences
- Difference between A000294 and the number of solid partitions of n (A000293).at n=19A007326
- Numbers divisible by the sum of factorials of their digits [A061602(n)] and also terminate in the sum of factorials of their digits.at n=21A071064
- Łukasiewicz word for each rooted plane tree (interpretation e in Stanley's exercise 19) encoded by A014486 (or A063171), with the last leaf implicit, i.e., these words are given without the last trailing zero, except for the null tree which is encoded as 0.at n=39A071153
- a(n) = n*(n-1)*(n^2 + 2)/6.at n=21A071244
- a(n) = -a(n-1) -a(n-2) -a(n-3) +a(n-4), a(0)=0, a(1)=1, a(2)=-1, a(3)=0.at n=45A100329
- 5-Smith numbers.at n=9A103126
- Records in heights of cyclotomic polynomials (A160338).at n=18A160339
- The number of ways to color the vertices of all (11) simple unlabeled graphs on 4 nodes using at most n colors.at n=9A199394
- Irregular triangle read by rows: row n lists the strings of the MIU formal system at the n-th level of the tree generated by recursively applying the system rules, starting from the MI string (see comments and example).at n=3A368946
- Irregular triangle read by rows: row n lists the strings of the MIU formal system at the n-th level of the tree generated by recursively applying the system rules, starting from the MI string (see comments and example).at n=27A368946
- Irregular triangle read by rows: row n lists (in lexicographical order and with duplicates removed) the strings of the MIU formal system at the n-th level of the tree generated by recursively applying the system rules, starting from the MI string.at n=3A368953
- Irregular triangle read by rows: row n lists (in lexicographical order and with duplicates removed) the strings of the MIU formal system at the n-th level of the tree generated by recursively applying the system rules, starting from the MI string.at n=16A368953
- Irregular triangle read by rows: row n lists all of the distinct derivable strings in the MIU formal system that are n characters long.at n=18A369173