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 1-8 of 8 results.

A031028 Position of n-th 0 in A031027.

Original entry on oeis.org

10, 14, 26, 36, 42, 54, 62, 78, 83, 86, 114, 115, 124, 136, 157, 164, 169, 194, 208, 210, 212, 246, 252, 253, 255, 270, 271, 287, 288, 292, 296, 314, 324, 331, 344, 345, 353, 357, 371, 375, 378, 379, 397, 399, 400, 416, 418, 426
Offset: 1

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A031029 Position of n-th 1 in A031027.

Original entry on oeis.org

1, 5, 6, 7, 13, 16, 25, 29, 32, 35, 40, 41, 45, 46, 48, 61, 66, 67, 76, 81, 85, 87, 92, 109, 110, 113, 121, 128, 133, 138, 143, 144, 149, 152, 153, 155, 158, 159, 172, 183, 188, 189, 202, 207, 223, 226, 229, 232, 237, 238, 260, 273, 284
Offset: 1

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A031030 Position of n-th 2 in A031027.

Original entry on oeis.org

2, 19, 24, 33, 49, 50, 51, 59, 63, 73, 75, 77, 90, 99, 102, 107, 112, 119, 129, 135, 148, 161, 162, 166, 167, 173, 174, 175, 197, 199, 206, 213, 222, 233, 240, 242, 248, 258, 261, 267, 269, 277, 280, 283, 285, 291, 301, 310, 313
Offset: 1

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A031031 Position of n-th 3 in A031027.

Original entry on oeis.org

3, 9, 31, 43, 55, 57, 65, 70, 80, 88, 97, 103, 111, 116, 117, 123, 131, 147, 150, 151, 156, 170, 176, 182, 190, 195, 200, 205, 217, 221, 225, 230, 235, 236, 241, 256, 263, 264, 265, 274, 275, 286, 295, 297, 299, 302, 304, 311, 315
Offset: 1

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A031032 Position of n-th 4 in A031027.

Original entry on oeis.org

11, 21, 22, 27, 37, 38, 39, 56, 64, 68, 79, 93, 94, 96, 100, 105, 106, 108, 122, 125, 130, 132, 137, 140, 154, 160, 163, 171, 178, 184, 186, 193, 196, 209, 220, 224, 227, 234, 243, 244, 250, 251, 257, 259, 276, 281, 282, 290, 294
Offset: 1

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A031033 Position of n-th 5 in A031027.

Original entry on oeis.org

4, 17, 18, 23, 30, 44, 47, 52, 53, 60, 71, 74, 82, 95, 98, 118, 134, 142, 168, 179, 181, 187, 192, 201, 203, 204, 211, 214, 231, 239, 266, 268, 278, 300, 307, 328, 342, 343, 348, 350, 359, 364, 366, 368, 382, 392, 402, 404, 406
Offset: 1

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A031034 Position of n-th 6 in A031027.

Original entry on oeis.org

8, 12, 15, 20, 28, 34, 58, 69, 72, 84, 89, 91, 101, 104, 120, 126, 127, 139, 141, 145, 146, 165, 177, 180, 185, 191, 198, 215, 216, 218, 219, 228, 245, 247, 249, 254, 262, 272, 279, 289, 293, 298, 309, 312, 318, 332, 339, 349, 354
Offset: 1

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A031111 Write the (n+1)st Fibonacci number in base 9 and juxtapose.

Original entry on oeis.org

1, 2, 3, 5, 8, 1, 4, 2, 3, 3, 7, 6, 1, 1, 0, 8, 1, 7, 0, 2, 7, 8, 4, 5, 8, 7, 4, 7, 1, 3, 1, 6, 2, 1, 6, 4, 3, 4, 8, 1, 5, 6, 5, 5, 1, 0, 2, 4, 6, 1, 6, 0, 1, 2, 2, 6, 2, 5, 8, 4, 3, 2, 7, 1, 7, 0, 5, 4, 0, 1, 2, 3, 8, 2, 1, 2, 0, 4, 4, 6, 1, 3, 2, 8, 3, 8, 2, 5, 3, 3
Offset: 1

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Examples

			A004692(25..28) = 123821, 204461, 328382, 533853. - _Georg Fischer_, Jun 21 2019
		

Crossrefs

Cf. A004692 (Fibonacci numbers written in base 9).
Similar sequences in base 3 (A030363), 4 (A030413), 6 (A030604), 7 (A031027), 8 (A031067), 5 (A031269).

Programs

  • Magma
    &cat[Reverse(Intseq(Fibonacci(k),9)):k in [2..28]]; // Marius A. Burtea, Jun 21 2019
  • Mathematica
    Flatten[IntegerDigits[#,9]&/@Fibonacci[Range[30]]] (* Harvey P. Dale, Jan 13 2024 *)

Extensions

a(88)-a(90) corrected by Georg Fischer, Jun 21 2019
Showing 1-8 of 8 results.