decompwlj 3D

Primes congruent to 1 mod 25

A141927 on the OEIS · family primes

Weight–level plate of Primes congruent to 1 mod 25
Click the plate to explore it in 3-D. Weight k across, level L up, both on log scales: blue in the weight class (k ≤ L), orange in the level class (k > L). The dashed diagonal is k = L.
Open in the 3-D viewerA141927 on the OEIS
Terms100,000 (n = 1 … 100,000)
Decomposable (a > 2d)99,998
Level class, k > L48,228 · 48.23 %
Weight class, k ≤ L51,770 · 51.77 %
Ties, k = L5
On the level line L = 18,881
Forced level, l ≤ d²441
Range of a(n)101 … 32,495,501
Range of the jump d50 … 3,300
Largest weight k, level L32,494,801, 637,151

56 different gaps occur, from 50 to 3,300; the level share is 48.23 %.

The decomposition

Every term of a strictly increasing sequence is written a(n) = k(n)·L(n) + d(n): the jump d = a(n+1) − a(n), the weight k the least divisor of a − d greater than d, the level L = (a − d)/k. A term decomposes when a > 2d; it is in the level class when k > L and in the weight class when k ≤ L. See decompwlj.com and arXiv:0711.0865, or how it works, with worked examples and a live one.