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A191405 A001951(n)+A001951(n+1). 3
1, 3, 6, 9, 12, 15, 17, 20, 23, 26, 29, 31, 34, 37, 40, 43, 46, 49, 51, 54, 57, 60, 63, 65, 68, 71, 74, 77, 80, 83, 85, 88, 91, 94, 97, 99, 102, 105, 108, 111, 113, 116, 119, 122, 125, 128, 131, 133, 136, 139, 142, 145, 147, 150, 153, 156, 159, 162, 165, 167, 170, 173, 176, 179, 181, 184, 187, 190, 193, 195 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..69.

MATHEMATICA

r = Sqrt[2]; f[n_] := Floor[n*r];

Table[f[n], {n, 0, 100}]  (* A001951 *)

Table[f[n] + f[n + 1], {n, 0, 100}]

  (* A191405(n)=A001951(n)+A001951(n+1) *)

Table[f[n] + f[n + 2], {n, 0, 100}]

  (* A191406(n)=A001951(n)+A001951(n+2) *)

Table[f[n] + f[n + 3], {n, 0, 100}]

  (* A191407(n)=A001951(n)+A001951(n+3) *)

CROSSREFS

Cf. A191402, A191406, A191407.

Sequence in context: A329514 A346951 A162500 * A198263 A276192 A329771

Adjacent sequences:  A191402 A191403 A191404 * A191406 A191407 A191408

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jun 01 2011

STATUS

approved

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Last modified September 20 10:51 EDT 2021. Contains 347584 sequences. (Running on oeis4.)