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A330709 Two-column table read by rows: pairs (i,j) in order sorted from the left. 2
0, 0, 1, 0, 1, 1, 2, 0, 2, 1, 2, 2, 3, 0, 3, 1, 3, 2, 3, 3, 4, 0, 4, 1, 4, 2, 4, 3, 4, 4, 5, 0, 5, 1, 5, 2, 5, 3, 5, 4, 5, 5, 6, 0, 6, 1, 6, 2, 6, 3, 6, 4, 6, 5, 6, 6, 7, 0, 7, 1, 7, 2, 7, 3, 7, 4, 7, 5, 7, 6, 7, 7, 8, 0, 8, 1, 8, 2, 8, 3, 8, 4, 8, 5, 8, 6, 8, 7, 8, 8, 9, 0, 9, 1, 9, 2, 9, 3, 9, 4, 9, 5, 9, 6, 9, 7, 9, 8, 9, 9, 10, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

LINKS

Mehmet A. Ates, Table of n, a(n) for n = 0..1500

MATHEMATICA

TwoDVectors = List[];

SeqSize = 20;

For[i = 0, i <= SeqSize, i++,

  For[j = 0, j <= i, j++,

    AppendTo[TwoDVectors, {i, j}]

  ]

];

Flatten[TwoDVectors]

CROSSREFS

a(2n)= A003056(n),

a(2n+1)= A002262(n).

Cf. A331195.

Sequence in context: A153149 A249072 A174007 * A045450 A029222 A162350

Adjacent sequences:  A330706 A330707 A330708 * A330710 A330711 A330712

KEYWORD

nonn,easy

AUTHOR

Mehmet A. Ates, Jun 08 2020

STATUS

approved

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Last modified February 25 14:40 EST 2021. Contains 341609 sequences. (Running on oeis4.)