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 1-5 of 5 results.

A348246 Index of first occurrence of n in A307730.

Original entry on oeis.org

1, 2, 4, 8, 47, 7, 52, 27, 17, 60, 1374, 26, 1385, 59, 46, 137, 3738, 98, 3755, 204, 83, 1399, 6680, 136, 320, 1398, 176, 224, 6703, 345, 84626, 252, 1447, 3775, 375, 203, 84657, 3774, 1446, 502, 89480, 410, 89521, 1480, 319, 6733, 91832, 542, 452, 1024, 3847, 1618, 91879, 690, 1524, 501, 3846, 6732, 173092, 1074, 173151, 84695, 645, 807, 1579, 1735, 192882
Offset: 1

Views

Author

Rémy Sigrist and N. J. A. Sloane, Oct 17 2021

Keywords

Comments

a(n) is the least k such that A307730(k) = n.

Examples

			For n = 6:
- sequence A307730 starts: 1, 2, 2, 3, 3, 3, 6, 4, 4, 4, 4, 6, 6, 6, 6, 6,
- the first occurrence of 6 appears at position 7,
- so a(6) = 7.

Links

Crossrefs

Cf. A307720, A307730, A307630, A348409.
Records: A348252, A348253.

Programs

  • C
    See Links section.

Formula

A348409(n) - a(n) >= n - 1.

A348256 Indices of records in A348249.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 11, 12, 14, 15, 21, 36, 39, 45, 57, 87, 203, 319, 429, 435, 517, 530, 710, 790, 1310, 1730, 2290, 3370, 3830, 4210, 7430, 7570, 9530, 9710, 13010, 44810, 70270
Offset: 1

Views

Author

N. J. A. Sloane, Oct 21 2021

Keywords

Links

Crossrefs

Cf. A307720, A307730, A348246, A348409, A348249, A348252-A348255.

Programs

  • C
    See Links section.

Extensions

a(35)-a(37) from Rémy Sigrist, Oct 22 2021

A348253 Indices of records in A348246.

Original entry on oeis.org

1, 2, 3, 4, 5, 7, 10, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293
Offset: 1

Views

Author

N. J. A. Sloane, Oct 21 2021

Keywords

Crossrefs

Cf. A307720, A307730, A348246, A348409, A348249, A348252-A348256.

A348255 Records in A348249.

Original entry on oeis.org

1, 2, 3, 4, 5, 10, 11, 20, 24, 52, 53, 116, 172, 371, 2662, 3226, 4800, 9546, 9804, 14171, 69148, 71863, 325494, 333873, 698509, 2262261, 15387377, 40004428, 40813283, 64314104, 550623089, 847235953, 897871194, 1259250335
Offset: 1

Views

Author

N. J. A. Sloane, Oct 21 2021

Keywords

Crossrefs

Cf. A307720, A307730, A348246, A348409, A348249, A348252-A348256.

A348254 Records in A348409.

Original entry on oeis.org

1, 3, 6, 11, 51, 58, 69, 1384, 1397, 3754, 3773, 6702, 6731, 84656, 84693, 89520, 89563, 91878, 91931, 173150, 173211, 192948, 193019, 524659, 524738, 865383, 865472, 876639, 876740, 890581, 890688, 904381, 904494, 918985, 919116, 1629115, 1629254, 1647255, 1647406, 1666931, 1667094, 1687929, 1688102
Offset: 1

Views

Author

N. J. A. Sloane, Oct 21 2021

Keywords

Crossrefs

Cf. A307720, A307730, A348246, A348409, A348249, A348252-A348256.
Showing 1-5 of 5 results.

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

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