Repeat, but zipping the copies (i.e. repeat at each element of the sequence) instead of concatenating entire repetition copies.

OverlappedRepeat.java

import java.util.*;
import java.util.stream.Stream;

public interface OverlappedRepeat<E> extends Collection<E> {
  static <E> Stream<E> overlappedRepeat(Stream<E> stream, int count) {
    return stream.flatMap(e -> Stream.generate(()->e).limit(count));
  }
  
  static <E> Stream<E> overlappedRepeat(Collection<E> collection, int count) {
    return overlappedRepeat(collection.parallelStream(), count);
  }
  default Stream<E> overlappedRepeat(int count) {
    return overlappedRepeat(this, count);
  }
  
  static <E> Stream<E> overlappedRepeat(E[] array, int count) {
    return overlappedRepeat(Arrays.stream(array), count);
  }
  
  static void main(String[] args) {
    if(args.length < 2) {
      System.err.println("Usage: <n> [items to repeat]");
      return;
    }
    overlappedRepeat(
      Arrays.copyOfRange(args, 1, args.length),
      Integer.parseUnsignedInt(args[0])
    ).forEach(System.out::println);
  }
}