The On-Line Encyclopedia of Bongard Problems

Search: BP569

Displaying 1-1 of 1 result found.

page 1

Sort: relevance Format: long Filter: (all | no meta | meta) Mode: (words | no words)

Triangular number of dots vs. non-triangular number of dots

(edit; present; nest [left/right]; search; history)

	COMMENTS	`All examples in this Problem are groups of black dots.` `The nth triangular number is the sum over the natural numbers from 1 to n, where n > 0. Note: 0 is the 0th triangular number. The first few triangular numbers are 0, 1, 3 (= 1+2) and 6 (= 1+2+3)`
	CROSSREFS	`Adjacent-numbered pages: BP564 BP565 BP566 BP567 BP568 * BP570 BP571 BP572 BP573 BP574`
	KEYWORD	`nice, precise, allsorted, notso, number, math, left-narrow, left-null, help, preciseworld`
	WORLD	`dots [smaller \| same \| bigger]`
	AUTHOR	`Leo Crabbe`

page 1

		Hints
(Greetings from The On-Line Encyclopedia of Bongard Problems!)