Mispar Bone'eh is a gematria system that translates to "constructive." In this system, the value of each letter in a word is determined by adding the numerical value of all the previous letters to the value of the current letter as the word is calculated.
When the Mispar Bone system is applied to the Tetragrammaton, the resulting value is 72.
Similarly, when this gematria system is applied to the distribution of the Jalekim of the hour (which consists of 396, 216, 252, and 216 jalekim), the resulting value is 2952. This distribution is based on the Tetragrammaton as we can read in the Sefer Yetzirah.
The number 2952 is the value of the standard value of Shemot 40:17
(יז) וַיְהִ֞י בַּחֹ֧דֶשׁ הָרִאשׁ֛וֹן בַּשָּׁנָ֥ה הַשֵּׁנִ֖ית בְּאֶחָ֣ד לַחֹ֑דֶשׁ הוּקַ֖ם הַמִּשְׁכָּֽן׃
(17) In the first month of the second year, on the first of the month, the Tabernacle was set up.