A176273 Partial sums of A036967.

1, 17, 49, 113, 194, 322, 565, 821, 1333, 1958, 2687, 3711, 5007, 7055, 9242, 11643, 14235, 17360, 21248, 25344, 30528, 37089, 44865, 53057, 63057, 73425, 85089, 99730, 115282, 130907, 147291, 164098, 183781, 203781, 224517, 247845, 276406

Offset

1,2

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Formula

a(n) = Sum_{i=1..n} A036967(i).

Example

a(11) = 1 + 16 + 32 + 64 + 81 + 128 + 243 + 256 + 512 + 625 + 729 = 2687.

Mathematica

Accumulate @ Select[Range[25000], # == 1 || Min[FactorInteger[#][[;; , 2]]] > 3 &] (* Amiram Eldar, Feb 07 2023 *)

Crossrefs

Cf. A000583, A001694, A036966, A036967.

Sequence in context: A181426 A029487 A069129 * A124710 A113867 A049737

Adjacent sequences: A176270 A176271 A176272 * A176274 A176275 A176276

Keyword

easy,nonn

Author

Jonathan Vos Post, Apr 14 2010

Status

approved