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 1-3 of 3 results.

A183019 Conjectured list of multisociable numbers.

Original entry on oeis.org

6, 28, 120, 220, 284, 496, 672, 1184, 1210, 2620, 2924, 5020, 5564, 6232, 6368, 8128, 10744, 10856, 12285, 12496, 14264, 14288, 14536, 14595, 15472, 17296, 18416, 30240, 32760, 63020, 66928, 66992, 67095, 69615, 71145, 76084, 79750, 87633
Offset: 1

Views

Author

William Rex Marshall, Jan 08 2011

Keywords

Crossrefs

Cf. A000396, A001065, A007691, A063990, A122726, A183013, A183016, A183022, A183029.

A183020 Largest members of k-sociable cycles of order r, with k > 1 and r > 1.

Original entry on oeis.org

8132064, 14246719968, 97998179400, 582340505600
Offset: 1

Views

Author

William Rex Marshall, Jan 08 2011

Keywords

Comments

A k-sociable (or multisociable) cycle of order r consists of r distinct positive integers such that the sum of the aliquot divisors (or proper divisors) of each is equal to k times the next term in the cycle, where k (the multiplicity) is a fixed positive integer.
In this sequence, a(1), a(2) and a(4) are the largest terms of 2-sociable cycles of order 3 (or bicrowds), and a(3) is the larger term of a 3-sociable cycle of order 2 (or triamicable pair).
No other terms <= 10^12.

Crossrefs

Cf. A001065, A166069, A183013, A183021, A183022.

A183021 Smallest members of k-sociable cycles of order r, with k > 1 and r > 1.

Original entry on oeis.org

5974080, 12162100800, 90079209000, 555108915200
Offset: 1

Views

Author

William Rex Marshall, Jan 08 2011

Keywords

Comments

A k-sociable (or multisociable) cycle of order r consists of r distinct positive integers such that the sum of the aliquot divisors (or proper divisors) of each is equal to k times the next term in the cycle, where k (the multiplicity) is a fixed positive integer.
a(1), a(2) and a(4) are the smallest terms of 2-sociable cycles of order 3 (or bicrowds), and a(3) is the smaller term of a 3-sociable cycle of order 2 (or triamicable pair).
No other terms <= 10^12.

Crossrefs

Cf. A001065, A166069, A183016, A183020, A183022.
Showing 1-3 of 3 results.

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

Content is available under The OEIS End-User License Agreement.