Decomposition of A037014
Reading binary expansion from right to left, run lengths decrease.
Decomposition of A037016
Reading binary expansion from right to left, run lengths increase.
Decomposition of A037020
Numbers n such that sum of proper (or aliquot) divisors of n is a prime.
Decomposition of A037144
Numbers with at most 3 prime factors (counted with multiplicity).
Decomposition of A037301
Numbers n such that the sum of base 2 digits of n equals the sum of base 3 digits of n.
Decomposition of A037308
Numbers n such that (sum of base 2 digits of n) = (sum of base 10 digits of n).
Decomposition of A037372
Numbers n such that every base 2 digit of n is a base 3 digit of n.
Decomposition of A037373
Numbers n such that every base 2 digit of n is a base 4 digit of n.
Decomposition of A037374
Numbers n such that every base 2 digit of n is a base 5 digit of n.
Decomposition of A037380
Numbers n such that every base 3 digit of n is a base 4 digit of n.