Number of strictly increasing arithmetic progressions of positive integers with at least 3 terms and sum <= n.
A014406
Number of strictly increasing arithmetic progressions of positive integers with at least 3 terms and sum <= n.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =1a(7) =1a(8) =3a(9) =4a(10) =4a(11) =7a(12) =7a(13) =8a(14) =13a(15) =14a(16) =14a(17) =20a(18) =20a(19) =22a(20) =29a(21) =31a(22) =31a(23) =39a(24) =41a(25) =43a(26) =52a(27) =55a(28) =55a(29) =68
External references
- oeis: A014406