cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-7 of 7 results.

A034035 Not of form (x^2+xy+2y^2 with x >= 0, y >= 0).

Original entry on oeis.org

3, 5, 6, 7, 10, 12, 13, 15, 17, 19, 20, 21, 24, 26, 27, 29, 30, 31, 33, 34, 35, 38, 39, 40, 41, 42, 45, 47, 48, 51, 52, 54, 55, 57, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 73, 75, 76, 78, 80, 82, 83, 84, 85, 87, 89, 90, 91, 93, 94, 95, 96, 97, 101, 102, 103
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042, A028951, A257346.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

A034036 Numbers of the form (x^2+xy+2y^2 with x>=0, y>=0).

Original entry on oeis.org

0, 1, 2, 4, 8, 9, 11, 14, 16, 18, 22, 23, 25, 28, 32, 36, 37, 43, 44, 46, 49, 50, 53, 56, 58, 64, 71, 72, 74, 77, 79, 81, 86, 88, 92, 98, 99, 100, 106, 107, 109, 112, 116, 121, 126, 127, 128, 134, 137, 142, 144, 148, 149, 151, 154, 158, 161, 162, 163, 169
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042, A028951.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

A034037 Numbers that are primitively represented by (x^2+xy+2y^2 with x >= 0, y >= 0).

Original entry on oeis.org

1, 2, 4, 8, 11, 14, 22, 23, 28, 32, 37, 43, 44, 46, 53, 56, 58, 64, 71, 74, 77, 79, 86, 88, 92, 106, 107, 109, 112, 116, 127, 128, 134, 137, 142, 148, 149, 151, 154, 158, 161, 163, 172, 176, 184, 193, 197, 203, 211, 212, 214, 218, 226, 232, 233, 239
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

A034038 Imprimitively represented by (x^2+xy+2y^2, x>=0, y>=0).

Original entry on oeis.org

4, 8, 9, 16, 18, 25, 32, 36, 44, 49, 50, 56, 64, 72, 81, 88, 92, 98, 99, 100, 112, 121, 126, 128, 144, 148, 162, 169, 172, 176, 184, 196, 198, 200, 207, 212, 224, 225, 232, 242, 252, 256, 275, 284, 288, 289, 296, 308, 316, 324, 333, 338, 344, 350
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

A034039 Numbers that are primitively but not imprimitively represented by (x^2+xy+2y^2, x>=0, y>=0).

Original entry on oeis.org

1, 2, 11, 14, 22, 23, 28, 37, 43, 46, 53, 58, 71, 74, 77, 79, 86, 106, 107, 109, 116, 127, 134, 137, 142, 149, 151, 154, 158, 161, 163, 193, 197, 203, 211, 214, 218, 226, 233, 239, 253, 254, 259, 263, 268, 274, 281, 298, 301, 302, 317, 319, 322
Offset: 1

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

A034040 Imprimitively but not primitively represented by (x^2+xy+2y^2, x>=0, y>=0).

Original entry on oeis.org

9, 16, 18, 25, 36, 49, 50, 72, 81, 98, 99, 100, 121, 126, 144, 162, 169, 196, 198, 200, 207, 224, 225, 252, 275, 288, 289, 324, 333, 338, 350, 361, 387, 392, 396, 400, 414, 441, 450, 477, 504, 512, 522, 539, 550, 575, 576, 578, 625, 639, 648
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015

A034041 Both primitively and imprimitively represented by (x^2+xy+2y^2, x>=0, y>=0).

Original entry on oeis.org

4, 8, 32, 44, 56, 64, 88, 92, 112, 128, 148, 172, 176, 184, 212, 232, 242, 256, 284, 296, 308, 316, 344, 352, 368, 424, 428, 436, 448, 464, 484, 508, 529, 536, 548, 568, 592, 596, 604, 616, 632, 644, 652, 688, 704, 736, 772, 788, 812, 841, 844
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Crossrefs

Cf. A034035-A034042.

Extensions

Definition corrected by N. J. A. Sloane, Apr 30 2015
Showing 1-7 of 7 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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