decompwlj 3D

Primes p such that p, p+4 and p+10 are primes

A046136 on the OEIS · family primes

Weight–level plate of Primes p such that p, p+4 and p+10 are primes
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 viewerA046136 on the OEIS
Terms100,000 (n = 1 … 100,000)
Decomposable (a > 2d)99,996
Level class, k > L60,239 · 60.24 %
Weight class, k ≤ L39,757 · 39.76 %
Ties, k = L11
On the level line L = 116,815
Forced level, l ≤ d²2,116
Range of a(n)3 … 125,105,203
Range of the jump d4 … 14,952
Largest weight k, level L125,096,431, 17,858,473

1,407 different gaps occur, from 4 to 14,952; the level share is 60.24 %; 2.1 % of terms are forced level (l <= d^2).

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.