28358
domain: N
Appears in sequences
- Self-convolution of (1, p(1), p(2), ...).at n=27A023626
- a(n) = n*(8*n^2 - 5)/3.at n=22A063523
- Triangle T(n,k), read by rows, formed by setting all entries in the zeroth column ((n,0) entries) and the main diagonal ((n,n) entries) to powers of 2 with all other entries formed by the recursion T(n,k) = T(n-1,k) + T(n,k-1).at n=53A096466
- Least k such that k*Mersenne-prime(n)*Mersenne-prime(n+1) - 1 is prime.at n=20A098915
- a(1) = 1; for n > 1, a(n) is the least k > a(n-1) such that a(n) + a(n-1) is square and a(n) - a(n-1) is prime.at n=26A108972
- Number of base 8 circular n-digit numbers with adjacent digits differing by 6 or less.at n=5A125396
- Partial sums of A100119. Sum of first n of the n-th centered n-gonal numbers.at n=21A130218
- a(n) = Sum_{k=0..floor(n/10)} binomial(n-5*k,5*k).at n=26A348290
- Number of integer compositions of n that are the first sums of some composition.at n=28A391683