a(n) = number of k-tuples (u(1), u(2), ..., u(k)) with 1 <= u(1) < u(2) < ... < u(k) <= n such that u(i) - u(i-1) <= 5 for i = 2,...,k.
A356621
a(n) = number of k-tuples (u(1), u(2), ..., u(k)) with 1 <= u(1) < u(2) < ... < u(k) <= n such that u(i) - u(i-1) <= 5 for i = 2,...,k.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =11a(4) =26a(5) =57a(6) =119a(7) =242a(8) =485a(9) =964a(10) =1907a(11) =3762a(12) =7410a(13) =14583a(14) =28686a(15) =56413a(16) =110924a(17) =218091a(18) =428777a(19) =842976a(20) =1657271a(21) =3258134a(22) =6405349a(23) =12592612a(24) =24756452a(25) =48669933a(26) =95682600a(27) =188107071a(28) =369808798a(29) =727024989
External references
- oeis: A356621