Refer to the following number series and answer the question given below (all numbers are single-digit numbers only). Counting should be done from left to right only.

Refer to the following number series and answer the question given below (all numbers are single-digit numbers only). Counting should be done from left to right only.
(Left) 3 6 2 8 7 4 3 1 6 9 2 5 8 1 3 4 8 7 5 4 7 9 5 7 2 4 1 (Right)
How many even digits are there each of which is immediately preceded by a perfect square and immediately followed by an odd digit?
(Note: 1 is also considered a perfect square.)
निम्नलिखित संख्या श्रृंखला का संदर्भ लें और उसके बाद दिए गए प्रश्न का उत्तर दें (सभी संख्याएँ केवल एकल अंक वाली संख्याएँ हैं) । गिनती केवल बाएँ से दाएँ की जानी चाहिए।
(बाएं) 3 6 2 8 7 4 3 1 6 9 2 5 8 1 3 4 8 7 5 4 7 9 5 7 2 4 1 (दाएं)
ऐसे कितने सम अंक हैं जिनमें से प्रत्येक के ठीक पहले एक पूर्ण वर्ग और ठीक बाद एक विषम अंक है?
(नोटः 1 भी पूर्ण वर्ग हैं।)

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