A120196 a(1)=3; a(n) = floor((26 + Sum_{j=1..n-1} a(j))/8).

3, 3, 4, 4, 5, 5, 6, 7, 7, 8, 9, 10, 12, 13, 15, 17, 19, 21, 24, 27, 30, 34, 38, 43, 48, 54, 61, 69, 77, 87, 98, 110, 124, 139, 157, 176, 198, 223, 251, 282, 318, 357, 402, 452, 509, 572, 644, 724, 815, 917, 1031, 1160, 1305, 1468, 1652, 1858, 2091, 2352, 2646, 2977

Offset: 1

Author

Graeme McRae, Jun 10 2006

Keywords

• nonn

Crossrefs

Cf. A072493, A073941, A112088.

Programs

Mathematica

a[1] = 3; a[n_] := a[n] = Floor[(26 + Sum[a[j], {j, n - 1}])/8]; Table[
a@ n, {n, 60}] (* Michael De Vlieger, Nov 29 2015 *)

PARI

lista(nn) = {va = vector(nn); va[1] = 3; for (n=2, nn, va[n] = (26 + sum(j=1, n-1, va[j]))\8;); va;} \\ Michel Marcus, Nov 29 2015

Extensions

More terms from Michel Marcus, Nov 29 2015