import { Sequence, SequenceFirst, SequenceMember, SequenceNext } from '../types';
export declare const triangularFirst: SequenceFirst;
/** https://oeis.org/A000217 */
export declare const triangularMember: SequenceMember;
/** https://oeis.org/A000217 */
export declare const triangularNext: SequenceNext;
/** https://oeis.org/A000217 */
export declare const triangularSequence: Sequence;