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 1-2 of 2 results.

A176577 Create a table by linearizing and concatenating arrays embedded in A114994 the terms of which map to numeric partitions.

Original entry on oeis.org

1, 2, 10, 3, 18, 36, 4, 21, 68, 42, 5, 34, 73, 74, 136, 7, 37, 132, 85, 264, 146, 8, 43, 137, 138, 273, 274, 170, 9, 66, 147, 149, 520, 293, 298, 292, 11, 69, 260, 171, 529, 530, 341, 548, 528, 15, 75, 265, 266, 547, 549, 554, 585, 1040, 546, 16, 87, 275, 277, 1032, 587
Offset: 1

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Author

Alford Arnold, Apr 20 2010

Keywords

Examples

			The first embedded array is sequence A099629 = 1 2 3 4 5 7 8 9 11 15 ...
The second array begins 10 18 21 34 37 43 ...
and the table begins
1..10..36..42..136..146..170..292...
2..18..68..74..
3..21..73..85..
4..34..
5..37..
7..43..
The number 292 in binary is 100100100
which maps to partition 3+3+3.

Crossrefs

Cf. A099627 A114994
A167979 (a similar array also mapped to numeric partitions) [From Alford Arnold, May 04 2010]

Extensions

More terms from Alford Arnold, May 04 2010

A099630 Smallest and largest primes pairwise displayed with k digits from k=2,3,... with repeated decimal digits.

Original entry on oeis.org

11, 11, 101, 997, 1009, 9973, 10007, 99991, 100003, 999983, 1000003, 9999991, 10000019, 99999989, 100000007, 999999937, 1000000007, 9999999967, 10000000019, 99999999977, 100000000003, 999999999989, 1000000000039, 9999999999971, 10000000000037, 99999999999973
Offset: 1

Views

Author

Labos Elemer, Oct 26 2004

Keywords

Comments

Contrary to A099629, this sequence is evidently infinite. Essentially [for more than 2 digits] consists of pairs of {nextprime[10^j],prevprime[10^(j+1)]}.

Crossrefs

Cf. A098224-A098227.

Programs

  • Mathematica
    Join[{11,11},Flatten[Table[{NextPrime[10^n],NextPrime[10^(n+1),-1]}, {n,2,20}]]] (* Harvey P. Dale, Jun 04 2018 *)

Extensions

Corrected and extended by Harvey P. Dale, Jun 04 2018
Showing 1-2 of 2 results.

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