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.

A243117 Possible values of A242962 in increasing order.

Original entry on oeis.org

0, 1, 3, 6, 8, 12, 13, 14, 15, 18, 20, 24, 28, 30, 31, 32, 36, 38, 39, 40, 42, 44, 48, 54, 56, 57, 60, 62, 63, 68, 72, 74, 78, 80, 84, 90, 91, 93, 96, 98, 102, 104, 108, 110, 112, 114, 120, 121, 124, 126, 127, 128, 132, 133, 138, 140, 144, 150, 152, 156, 158
Offset: 1

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Author

Jaroslav Krizek, May 29 2014

Keywords

Comments

A242962(n) = (n*(n+1)/2) mod antisigma(n) = A000217(n) mod A024816(n); where A000217(n) = triangular numbers, A024816(n) = sum of numbers less than n which do not divide n.
Complement of A243118.
a(n) = A002191(n+1) for n >= 5; where A002191 = possible values of sigma(n).

Examples

			0 is in the sequence because there is a number m such that A242962(m) = 0; m = 3.
		

Crossrefs