103260
domain: N
Appears in sequences
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Lucas numbers), t = (1, p(1), p(2), ...).at n=26A024470
- Numbers whose base-10 and base-7 representations are permutations of the same multiset of digits.at n=38A130604
- Number of (w,x,y,z) with all terms in {1,...,n} and w<2x+y+z.at n=18A212145