23590
domain: N
Appears in sequences
- Number of partitions in parts not of the form 13k, 13k+3 or 13k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 5 are greater than 1.at n=44A035951
- McKay-Thompson series of class 34A for Monster.at n=44A058638
- Numbers which when multiplied by any repunit prime Rp give a Smith number.at n=10A104167
- First differences of A132581.at n=38A132582
- Expansion of chi(-q^5) / chi(-q)^5 in powers of q where chi() is a Ramanujan theta function.at n=13A132985
- Number of nondecreasing -4..4 vectors of length n whose dot product with some other -4..4 vector equals n.at n=8A226336
- Sum of all the parts in the partitions of 5n into 5 parts.at n=7A256235
- Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2.at n=29A282721
- Sum of all the parts in the partitions of n into 5 parts.at n=35A308822
- Nonexponential weird numbers: nonexponential abundant numbers (A348604) that are not equal to the sum of any subset of their nonexponential divisors.at n=36A348631
- (1+e)-weird numbers: (1+e)-abundant numbers k such that no subset of the aliquot (1+e)-divisors of k sums to k.at n=37A349285